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## org.apache.commons.lang.math
Class RandomUtils

    java.lang.Object
      org.apache.commons.lang.math.RandomUtils

    public class RandomUtils

extends Object

`RandomUtils` is a wrapper that supports all possible `Random` methods via the `Math.random()` method and its system-wide `Random` object.

Since:
  2.0
Version:
  $Id: RandomUtils.java 906320 2010-02-04 01:41:10Z sebb $
Author:
  Gary D. Gregory

Field Summary
`static Random` | `JVM_RANDOM` An instance of `JVMRandom`.

Constructor Summary
`RandomUtils()`

Method Summary
`static boolean` | `nextBoolean()` Returns the next pseudorandom, uniformly distributed boolean value from the Math.random() sequence.
`static boolean` | `nextBoolean(Random random)` Returns the next pseudorandom, uniformly distributed boolean value from the given random sequence.
`static double` | `nextDouble()` Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the Math.random() sequence.
`static double` | `nextDouble(Random random)` Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the given Random sequence.
`static float` | `nextFloat()` Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the Math.random() sequence.
`static float` | `nextFloat(Random random)` Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the given Random sequence.
`static int` | `nextInt()` Returns the next pseudorandom, uniformly distributed int value from the Math.random() sequence.
`static int` | `nextInt(int n)` Returns a pseudorandom, uniformly distributed int value between `0` (inclusive) and the specified value (exclusive), from the Math.random() sequence.
`static int` | `nextInt(Random random)` Returns the next pseudorandom, uniformly distributed int value from the given `random` sequence.
`static int` | `nextInt(Random random, int n)` Returns a pseudorandom, uniformly distributed int value between `0` (inclusive) and the specified value (exclusive), from the given Random sequence.
`static long` | `nextLong()` Returns the next pseudorandom, uniformly distributed long value from the Math.random() sequence.
`static long` | `nextLong(Random random)` Returns the next pseudorandom, uniformly distributed long value from the given Random sequence.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### JVM_RANDOM

    public static final Random JVM_RANDOM

  An instance of `JVMRandom`.

Constructor Detail

### RandomUtils

    public RandomUtils()

Method Detail

### nextInt

    public static int nextInt()

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

  N.B. All values are >= 0.

  Returns:
    the random int

### nextInt

    public static int nextInt(Random random)

  Returns the next pseudorandom, uniformly distributed int value from the given `random` sequence.

  Parameters:
    `random` - the Random sequence generator.
  Returns:
    the random int

### nextInt

    public static int nextInt(int n)

  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
  Returns:
    the random int

### nextInt

    public static int nextInt(Random random,
                              int n)

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

  Parameters:
    `random` - the Random sequence generator.
    `n` - the specified exclusive max-value
  Returns:
    the random int

### nextLong

    public static long nextLong()

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

  N.B. All values are >= 0.

  Returns:
    the random long

### nextLong

    public static long nextLong(Random random)

  Returns the next pseudorandom, uniformly distributed long value from the given Random sequence.

  Parameters:
    `random` - the Random sequence generator.
  Returns:
    the random long

### nextBoolean

    public static boolean nextBoolean()

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

  Returns:
    the random boolean

### nextBoolean

    public static boolean nextBoolean(Random random)

  Returns the next pseudorandom, uniformly distributed boolean value from the given random sequence.

  Parameters:
    `random` - the Random sequence generator.
  Returns:
    the random boolean

### nextFloat

    public static float nextFloat()

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

  Returns:
    the random float

### nextFloat

    public static float nextFloat(Random random)

  Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the given Random sequence.

  Parameters:
    `random` - the Random sequence generator.
  Returns:
    the random float

### nextDouble

    public static double nextDouble()

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

  Returns:
    the random double

### nextDouble

    public static double nextDouble(Random random)

  Returns the next pseudorandom, uniformly distributed float value between `0.0` and `1.0` from the given Random sequence.

  Parameters:
    `random` - the Random sequence generator.
  Returns:
    the random double

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