com.u7.jthereum

Class Jthereum

Object

com.u7.jthereum.Jthereum

public class Jthereum
extends Object

This class contains the primary methods that are used to compile contracts and deploy them. This object cannot be instantiated, and the methods are static. It is suggested that you do a static import of this class.

The main method to compile and deploy contracts is... compileAndDeploy().

There are also methods for creating Proxy Objects, which are used to call contract methods on the blockchain.

There are also a few convenience methods for doing blockchain related tasks.

Each method comes with a few variants that take different numbers of arguments for your convenience.

There is an ArgumentManager which attempts to figure out what values should be used for missing arguments.

You can view a dump of chosen argment values, along with the source of the argument, by setting a property in 'jthereum.config' (in the instllation directory), or 'jtherem.properties' in your project directory to:

 DUMP_ARGUMENT_DETAILS_TO_CONSOLE=true
 

The primary public methods of this class are:

   compile() -- Compile your Contract to check for errors
   compileAndDeploy() -- Compile your contract and deploy to the blockchain
   createProxy() -- Create a proxy object to access a contract
 

The misc helper methods include:

   getBalance() -- Get the ETH balance of an account
   getMyAddress() -- Get the account address used to send transactions from
   getNextNonce() -- get the nonce value for an account
   sendEth() -- Send some ETH
   sendAllEth() -- Send all ETH from an account you control
   weiAmountToString() -- Format an ETH amount as a string suitable for printing
   getJthereumProperties() -- Get the current Properties object.
 

Note that if your contract class contains a main() function, then you can call both compileAndDeploy(), and/or createProxy() with *zero* arguments, which makes things super-simple.

Field Summary

Fields

Modifier and Type	Field and Description
static java.math.BigInteger	ETHER Constant value representing one Ether (10^18 Wei, 1,000 Finney)
static java.math.BigInteger	FINNEY Constant value representing one Finney (10^15 Wei, 1,000 Szabo)
static java.math.BigInteger	GWEI Constant value representing one Wei
static java.math.BigInteger	SZABO Constant value representing one GWei (10^9 Wei)
static java.math.BigInteger	WEI Constant value representing one Wei

Method Summary

Modifier and Type	Method and Description
static String	compile() Compiles (translates) the Java class into Solidity code suitable to be compiled and deployed to the blockchain, and attempts to compile the generated code.
static String	compile(Class _class) Compiles (translates) the Java class into Solidity code suitable to be compiled and deployed to the blockchain, and attempts to compile the generated code.
static String	compileAndDeploy() Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(boolean verifySource) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(Class _class) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(Class _class, boolean verifySource) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(Class _class, String blockchainName) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(Class _class, String blockchainName, boolean verifySource) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(String blockchainName) Compiles the given Java class, and deploys it to the blockchain.
static String	compileAndDeploy(String blockchainName, boolean verifySource) Compiles the given Java class, and deploys it to the blockchain.
static Object	createProxy() Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static <T> T	createProxy(Class<T> _class) Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static <T> T	createProxy(Class<T> _class, String blockchainName) Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static <T> T	createProxy(Class<T> _class, String blockchainName, String contractAddress) Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static Object	createProxy(String blockchainName) Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static Object	createProxy(String blockchainName, String contractAddress) Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.
static boolean	doesAddressContainContract(String blockchainName, String address) Returns true iff the address on the specified blockchain contains a contract.
static com.u7.jthereum.internal.EtherscanSourceCodeDetails	generateJavaProxyFromEtherscanSource(String address)
static com.u7.jthereum.internal.EtherscanSourceCodeDetails	generateJavaProxyFromEtherscanSource(String blockchainName, String address)
static com.u7.jthereum.internal.EtherscanSourceCodeDetails	generateJavaProxyFromEtherscanSource(String blockchainName, String address, String packageName)
static java.math.BigInteger	getBalance() Gets the balance (in Wei) of the inferred account on the inferred blockchain.
static java.math.BigInteger	getBalance(String blockchainName) Gets the balance (in Wei) of the inferred account on the specified blockchain.
static java.math.BigInteger	getBalance(String blockchainName, String address) Gets the balance (in Wei) of the specified account on the specified blockchain.
static com.u7.jthereum.support.BlockDetails	getBlockDetails(String blockchainName, java.math.BigInteger blockNumber) Get BlockDetails of a specific block on the blockchain.
static com.u7.jthereum.support.BlockDetails	getBlockDetails(String blockchainName, long blockNumber) Get BlockDetails of a specific block on the blockchain.
static java.math.BigInteger	getCurrentBlockNumber(String blockchainName)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain()
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class contractClass)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class contractClass, java.math.BigInteger startingBlock)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class contractClass, java.math.BigInteger startingBlock, java.math.BigInteger endingBlock)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class contractClass, long startingBlock, long endingBlock)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class _class, String blockchainName)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class _class, String blockchainName, java.math.BigInteger startingBlock, java.math.BigInteger endingBlock)
static com.u7.jthereum.support.GenericEventLogItem[]	getEventsFromBlockchain(Class _class, String blockchainName, String address)
static JthereumProperties	getJthereumProperties() Gets the current JthereumProperties object in effect.
static String	getMyAddress() Gets the address that will be used with the inferred blockchain.
static String	getMyAddress(String blockchainName) Gets the address that will be used with the named blockchain.
static JthereumProperties	getThreadLocalJthereumProperties() Returns the JthereumProperties object that is specific to this thread, if any.
static void	p(Object s) Convenience method to print out an object as a string.
static boolean	sendAllEth(String blockchainName, java.math.BigInteger fromPK, String toAddress) Sends *all* the Wei from the account associated with fromPK to toAddress.
static boolean	sendEth(String blockchainName, java.math.BigInteger fromPK, String toAddress, java.math.BigInteger amount) Sends the specified amount of Wei to 'toAddress'.
static boolean	sendEth(String blockchainName, java.math.BigInteger fromPK, String toAddress, long amount) Sends the specified amount of Wei to 'toAddress'.
static boolean	sendEth(String blockchainName, String toAddress, java.math.BigInteger amount) Sends the specified amount of Wei to 'toAddress'.
static boolean	sendEth(String blockchainName, String toAddress, long amount) Sends the specified amount of Wei to 'toAddress'.
static String	weiAmountToString(java.math.BigInteger amount) Format a Wei amount to show the value in terms of ETH (as a floating point value), and Wei (as an exact integer value).

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

ETHER

public static final java.math.BigInteger ETHER

Constant value representing one Ether (10^18 Wei, 1,000 Finney)

FINNEY

public static final java.math.BigInteger FINNEY

Constant value representing one Finney (10^15 Wei, 1,000 Szabo)

GWEI

public static final java.math.BigInteger GWEI

Constant value representing one Wei

SZABO

public static final java.math.BigInteger SZABO

Constant value representing one GWei (10^9 Wei)

WEI

public static final java.math.BigInteger WEI

Constant value representing one Wei

Method Detail

compile

public static String compile()

Compiles (translates) the Java class into Solidity code suitable to be compiled and deployed to the blockchain, and attempts to compile the generated code.

Compiles the class containing the main() method that was invoked.

This method is mainly for checking for translation errors. Normally you would call compileAndDeploy()

Returns:

a String containing the translated Solidity source code

compile

public static String compile(Class _class)

Compiles (translates) the Java class into Solidity code suitable to be compiled and deployed to the blockchain, and attempts to compile the generated code.

This method is mainly for checking for tranlation errors. Normally you would call compileAndDeploy()

Parameters:

_class - the class to be compiled

Returns:

a String containing the translated Solidity source code

compileAndDeploy

public static String compileAndDeploy()

Compiles the given Java class, and deploys it to the blockchain.

The class to compile is the class containing the main() method that is executing.

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(boolean verifySource)

Compiles the given Java class, and deploys it to the blockchain.

Parameters:

verifySource - true iff the contract source code should be verified on https://etherscan.io

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(Class _class)

Compiles the given Java class, and deploys it to the blockchain.

Parameters:

_class - the class to compile

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(Class _class,
                                      boolean verifySource)

Compiles the given Java class, and deploys it to the blockchain.

Parameters:

_class - the class to compile

verifySource - true iff the contract source code should be verified on https://etherscan.io

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(Class _class,
                                      String blockchainName)

Compiles the given Java class, and deploys it to the blockchain.

Parameters:

_class - the class to compile

blockchainName - the name of the blockchain to deploy to

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(Class _class,
                                      String blockchainName,
                                      boolean verifySource)

Compiles the given Java class, and deploys it to the blockchain.

Parameters:

_class - the class to compile

blockchainName - the name of the blockchain to deploy to

verifySource - true iff the contract source code should be verified on https://etherscan.io

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(String blockchainName)

Compiles the given Java class, and deploys it to the blockchain.

The class to compile is the class containing the main() method that is executing.

Parameters:

blockchainName - the name of the blockchain to deploy to

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

compileAndDeploy

public static String compileAndDeploy(String blockchainName,
                                      boolean verifySource)

Compiles the given Java class, and deploys it to the blockchain.

The class to compile is the class containing the main() method that is executing.

Parameters:

blockchainName - the name of the blockchain to deploy to

verifySource - true iff the contract source code should be verified on https://etherscan.io

Returns:

the Address string of the deployed contract, or null if compilation or deployment failed

createProxy

public static Object createProxy()

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the class containing the main() method that was run.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM.

Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Since the blockchainName is not specified, it will be inferred from the OVERRIDE_BLOCKCHAIN property, if present, else from the first @DefaultContractLocation annotation, if present, else from the most recent successful deployment of this contract, else from the DEFAULT_BLOCKCHAIN property, if present, else it will default to "test".

Since the address of the contract is not specified it will be inferred from an @DefaultContractLocation annotation on the contract, or if not present then the address will be inferred from deloyment address of the most recent successful deployment of this contract (if any).

Returns:

the proxy object

createProxy

public static <T> T createProxy(Class<T> _class)

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the given class.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM.

Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Since the blockchainName is not specified, it will be inferred from the OVERRIDE_BLOCKCHAIN property, if present, else from the first @DefaultContractLocation annotation, if present, else from the most recent successful deployment of this contract, else from the DEFAULT_BLOCKCHAIN property, if present, else it will default to "test".

Since the address of the contract is not specified it will be inferred from an @DefaultContractLocation annotation on the contract, or if not present then the address will be inferred from deloyment address of the most recent successful deployment of this contract (if any).

Type Parameters:

T - the type of the proxy object to be created and returned

Parameters:

_class - the contract class to wrap in a proxy

Returns:

the proxy object

createProxy

public static <T> T createProxy(Class<T> _class,
                                String blockchainName)

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the given class.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM.

Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Since the address of the contract is not specified it will be inferred from an @DefaultContractLocation annotation on the contract, or if not present then the address will be inferred from deloyment address of the most recent successful deployment of this contract (if any).

Type Parameters:

T - the type of the proxy object to be created and returned

Parameters:

_class - the contract class to wrap in a proxy

blockchainName - the blockchain to use

Returns:

the proxy object

createProxy

public static <T> T createProxy(Class<T> _class,
                                String blockchainName,
                                String contractAddress)

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the given class.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM. Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Type Parameters:

T - the type of the proxy object to be created and returned

Parameters:

_class - the contract class to wrap in a proxy

blockchainName - the blockchain to use

contractAddress - the address that the contract is deployed at

Returns:

the proxy object

createProxy

public static Object createProxy(String blockchainName)

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the class containing the main() method that was run.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM.

Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Since the address of the contract is not specified it will be inferred from an @DefaultContractLocation annotation on the contract, or if not present then the address will be inferred from deloyment address of the most recent successful deployment of this contract (if any).

Parameters:

blockchainName - the blockchain to use

Returns:

the proxy object

createProxy

public static Object createProxy(String blockchainName,
                                 String contractAddress)

Creates a Proxy Object that will delegate method calls to a contract deployed on the blockchain.

The Proxy Object will be of a class derived from the class containing the main() method that was run.

Certain method calls will be executed on the local JVM, rather than being delgated to calls to the blockchain. Specifically, static methods, and methods annotated with @JavaSideExecutionOnly will be executed on the local JVM.

Note that any methods that you intend to call directly on the blockchain *must* be marked 'public'

Parameters:

blockchainName - the blockchain to use

contractAddress - the address that the contract is deployed at

Returns:

the proxy object

doesAddressContainContract

public static boolean doesAddressContainContract(String blockchainName,
                                                 String address)

Returns true iff the address on the specified blockchain contains a contract.

NOTE: This method is still experimental! May not be fully reliable.

Parameters:

blockchainName - the blockchain to use

address - the address to check

Returns:

true iff the address hold a contract

generateJavaProxyFromEtherscanSource

public static com.u7.jthereum.internal.EtherscanSourceCodeDetails generateJavaProxyFromEtherscanSource(String address)

generateJavaProxyFromEtherscanSource

public static com.u7.jthereum.internal.EtherscanSourceCodeDetails generateJavaProxyFromEtherscanSource(String blockchainName,
                                                                                                       String address)

generateJavaProxyFromEtherscanSource

public static com.u7.jthereum.internal.EtherscanSourceCodeDetails generateJavaProxyFromEtherscanSource(String blockchainName,
                                                                                                       String address,
                                                                                                       String packageName)

getBalance

public static java.math.BigInteger getBalance()

Gets the balance (in Wei) of the inferred account on the inferred blockchain.

The account will be inferred from the privateKey set in the JthereumProperties object.

Returns:

the balance (in Wei)

getBalance

public static java.math.BigInteger getBalance(String blockchainName)

Gets the balance (in Wei) of the inferred account on the specified blockchain.

The account will be inferred from the privateKey set in the JthereumProperties object.

Parameters:

blockchainName - the blockchain to use

Returns:

the balance (in Wei)

getBalance

public static java.math.BigInteger getBalance(String blockchainName,
                                              String address)

Gets the balance (in Wei) of the specified account on the specified blockchain.

Parameters:

blockchainName - the blockchain to use

address - the address to get the blance of

Returns:

the balance (in Wei)

getBlockDetails

public static com.u7.jthereum.support.BlockDetails getBlockDetails(String blockchainName,
                                                                   java.math.BigInteger blockNumber)

Get BlockDetails of a specific block on the blockchain.

Parameters:

blockchainName - blockchain name

blockNumber - block number as a BigInteger (for that day when there are more than 2^63 blocks... ;)

Returns:

the BlockDetails object, or null if the information could not be retrieved

getBlockDetails

public static com.u7.jthereum.support.BlockDetails getBlockDetails(String blockchainName,
                                                                   long blockNumber)

Get BlockDetails of a specific block on the blockchain.

Parameters:

blockchainName - blockchain name

blockNumber - block number as a long

Returns:

the BlockDetails object, or null if the information could not be retrieved

getCurrentBlockNumber

public static java.math.BigInteger getCurrentBlockNumber(String blockchainName)

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain()

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class contractClass)

Parameters:

contractClass -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class contractClass,
                                                                                    java.math.BigInteger startingBlock)

Parameters:

contractClass -

startingBlock -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class contractClass,
                                                                                    java.math.BigInteger startingBlock,
                                                                                    java.math.BigInteger endingBlock)

Parameters:

contractClass -

startingBlock -

endingBlock -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class contractClass,
                                                                                    long startingBlock,
                                                                                    long endingBlock)

Parameters:

contractClass -

startingBlock -

endingBlock -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class _class,
                                                                                    String blockchainName)

Parameters:

_class -

blockchainName -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class _class,
                                                                                    String blockchainName,
                                                                                    java.math.BigInteger startingBlock,
                                                                                    java.math.BigInteger endingBlock)

Parameters:

_class -

blockchainName -

startingBlock -

endingBlock -

Returns:

getEventsFromBlockchain

public static com.u7.jthereum.support.GenericEventLogItem[] getEventsFromBlockchain(Class _class,
                                                                                    String blockchainName,
                                                                                    String address)

Parameters:

_class -

blockchainName -

address -

Returns:

getJthereumProperties

public static JthereumProperties getJthereumProperties()

Gets the current JthereumProperties object in effect.

The JthereumProperties object contains the properties that were loaded from 'jthereum.comfig' in the installation directory (or from the 'jthereum.properties' file, if it exists in the current directory).

Returns:

The JthereumProperties object in effect.

See Also:

JthereumProperties

getMyAddress

public static String getMyAddress()

Gets the address that will be used with the inferred blockchain.

Returns:

the default address that will be used for transactions on the current default blockchain

getMyAddress

public static String getMyAddress(String blockchainName)

Gets the address that will be used with the named blockchain.

Parameters:

blockchainName - the blockchain to use

Returns:

the default address that will be used for transactions on the named blockchain

getThreadLocalJthereumProperties

public static JthereumProperties getThreadLocalJthereumProperties()

Returns the JthereumProperties object that is specific to this thread, if any. May return null.

Returns:

the JthereumProperties object for the current thread

p

public static void p(Object s)

Convenience method to print out an object as a string. Prints a new-line after the string. Output goes to System.out.

Just a shortcut method that does System.out.println(s)

Parameters:

s - the object to print

sendAllEth

public static boolean sendAllEth(String blockchainName,
                                 java.math.BigInteger fromPK,
                                 String toAddress)

Sends *all* the Wei from the account associated with fromPK to toAddress.

The Ether comes from the account associated with the private key value retrieved from the JthereumProperties object.

The gasLimit will be set to 21,000, which means that any attempt to send the Eth to the @FallbackFunction of a contract will fail if that function consumes any gas. To send Eth to such a contract use sendEth() which uses a gasLimit of 40,000 by default to pay the gas for a small @FallbackFunction if needed.

Parameters:

blockchainName - name of the blockchain to do the transaction on

fromPK - the private key for the account sending the ETH

toAddress - desitnation address to send the Wei to

Returns:

true on success, false if success could not be determined (transaction may have executed, or execute in the future)

sendEth

public static boolean sendEth(String blockchainName,
                              java.math.BigInteger fromPK,
                              String toAddress,
                              java.math.BigInteger amount)

Sends the specified amount of Wei to 'toAddress'.

The Ether comes from the account associated with the private key value retrieved from the JthereumProperties object.

Parameters:

blockchainName - name of the blockchain to do the transaction on

fromPK - the private key for the account sending the ETH

toAddress - desitnation address to send the Wei to

amount - amount of Wei to send

Returns:

true on success, false if success could not be determined (transaction may have executed, or execute in the future)

sendEth

public static boolean sendEth(String blockchainName,
                              java.math.BigInteger fromPK,
                              String toAddress,
                              long amount)

Sends the specified amount of Wei to 'toAddress'.

The Ether comes from the account associated with the private key value retrieved from the JthereumProperties object.

Parameters:

blockchainName - name of the blockchain to do the transaction on

fromPK - the private key for the account sending the ETH

toAddress - desitnation address to send the Wei to

amount - amount of Wei to send

Returns:

true on success, false if success could not be determined (transaction may have executed, or execute in the future)

sendEth

public static boolean sendEth(String blockchainName,
                              String toAddress,
                              java.math.BigInteger amount)

Sends the specified amount of Wei to 'toAddress'.

The Ether comes from the account associated with the private key value retrieved from the JthereumProperties object.

Parameters:

blockchainName - name of the blockchain to do the transaction on

toAddress - desitnation address to send the Wei to

amount - amount of Wei to send

Returns:

true on success, false if success could not be determined (transaction may have executed, or execute in the future)

sendEth

public static boolean sendEth(String blockchainName,
                              String toAddress,
                              long amount)

Sends the specified amount of Wei to 'toAddress'.

The Ether comes from the account associated with the private key value retrieved from the JthereumProperties object.

Parameters:

blockchainName - name of the blockchain to do the transaction on

toAddress - desitnation address to send the Wei to

amount - amount of Wei to send

Returns:

true on success, false if success could not be determined (transaction may have executed, or execute in the future)

weiAmountToString

public static String weiAmountToString(java.math.BigInteger amount)

Format a Wei amount to show the value in terms of ETH (as a floating point value), and Wei (as an exact integer value).

Parameters:

amount - the amount of Wei

Returns:

the formatted string