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Java Source Code / Java Documentation » Library » Apache common lang » org.apache.commons.lang.math 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   java.util.Random
      org.apache.commons.lang.math.JVMRandom

JVMRandom
final public class JVMRandom extends Random (Code)

JVMRandom is a wrapper that supports all possible Random methods via the java.lang.Math.random method and its system-wide Random object.


since:
   2.0
version:
   $Id: JVMRandom.java 471626 2006-11-06 04:02:09Z bayard $



Constructor Summary
public  JVMRandom()
     Constructs a new instance.

Method Summary
public  booleannextBoolean()
    
public  voidnextBytes(byte[] byteArray)
     Unsupported in 2.0.
public  doublenextDouble()
    
public  floatnextFloat()
    
public synchronized  doublenextGaussian()
     Unsupported in 2.0.
public  intnextInt()
    
public  intnextInt(int n)
    
public  longnextLong()
    
public static  longnextLong(long n)
    
public synchronized  voidsetSeed(long seed)
     Unsupported in 2.0.


Constructor Detail
JVMRandom
public JVMRandom()(Code)
Constructs a new instance.




Method Detail
nextBoolean
public boolean nextBoolean()(Code)

Returns the next pseudorandom, uniformly distributed boolean value from the Math.random() sequence.

the random boolean



nextBytes
public void nextBytes(byte[] byteArray)(Code)
Unsupported in 2.0.
Parameters:
  byteArray - ignored
throws:
  UnsupportedOperationException -



nextDouble
public double nextDouble()(Code)

Synonymous to the Math.random() call.

the random double



nextFloat
public float nextFloat()(Code)

Returns the next pseudorandom, uniformly distributed float value between 0.0 and 1.0 from the Math.random() sequence.

the random float



nextGaussian
public synchronized double nextGaussian()(Code)
Unsupported in 2.0. Nothing, this method always throws an UnsupportedOperationException.
throws:
  UnsupportedOperationException -



nextInt
public int nextInt()(Code)

Returns the next pseudorandom, uniformly distributed int value from the Math.random() sequence.

the random int



nextInt
public int nextInt(int n)(Code)

Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), from the Math.random() sequence.


Parameters:
  n - the specified exclusive max-value the random int
throws:
  IllegalArgumentException - when n <= 0



nextLong
public long nextLong()(Code)

Returns the next pseudorandom, uniformly distributed long value from the Math.random() sequence.

the random long



nextLong
public static long nextLong(long n)(Code)

Returns a pseudorandom, uniformly distributed long value between 0 (inclusive) and the specified value (exclusive), from the Math.random() sequence.


Parameters:
  n - the specified exclusive max-value the random long
throws:
  IllegalArgumentException - when n <= 0



setSeed
public synchronized void setSeed(long seed)(Code)
Unsupported in 2.0.
Parameters:
  seed - ignored
throws:
  UnsupportedOperationException -



Methods inherited from java.util.Random
protected int next(int bits)(Code)(Java Doc)
public boolean nextBoolean()(Code)(Java Doc)
public void nextBytes(byte[] bytes)(Code)(Java Doc)
public double nextDouble()(Code)(Java Doc)
public float nextFloat()(Code)(Java Doc)
public synchronized double nextGaussian()(Code)(Java Doc)
public int nextInt()(Code)(Java Doc)
public int nextInt(int n)(Code)(Java Doc)
public long nextLong()(Code)(Java Doc)
public synchronized void setSeed(long seed)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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