com.github.jaemon.dinger.utils

类 JVMRandom

java.lang.Object

java.util.Random

com.github.jaemon.dinger.utils.JVMRandom

所有已实现的接口:

Serializable

public final class JVMRandom
extends Random

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

从以下版本开始:

1.0

版本:

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

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
JVMRandom() Constructs a new instance.

方法概要

限定符和类型	方法和说明
boolean	nextBoolean() Returns the next pseudorandom, uniformly distributed boolean value from the Math.random() sequence.
void	nextBytes(byte[] byteArray) Unsupported in 2.0.
double	nextDouble() Synonymous to the Math.random() call.
float	nextFloat() Returns the next pseudorandom, uniformly distributed float value between 0.0 and 1.0 from the Math.random() sequence.
double	nextGaussian() Unsupported in 2.0.
int	nextInt() Returns the next pseudorandom, uniformly distributed int value from the Math.random() sequence.
int	nextInt(int n) Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), from the Math.random() sequence.
long	nextLong() Returns the next pseudorandom, uniformly distributed long value from the Math.random() sequence.
static long	nextLong(long n) Returns a pseudorandom, uniformly distributed long value between 0 (inclusive) and the specified value (exclusive), from the Math.random() sequence.
void	setSeed(long seed) Unsupported in 2.0.

从类继承的方法 java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, next

从类继承的方法 java.lang.Object

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

构造器详细资料

JVMRandom

public JVMRandom()

Constructs a new instance.

方法详细资料

setSeed

public void setSeed(long seed)

Unsupported in 2.0.

覆盖:

setSeed 在类中 Random

参数:

seed - ignored

抛出:

UnsupportedOperationException - unsupportedOperationException

nextGaussian

public double nextGaussian()

Unsupported in 2.0.

覆盖:

nextGaussian 在类中 Random

返回:

Nothing, this method always throws an UnsupportedOperationException.

抛出:

UnsupportedOperationException - unsupportedOperationException

nextBytes

public void nextBytes(byte[] byteArray)

Unsupported in 2.0.

覆盖:

nextBytes 在类中 Random

参数:

byteArray - ignored

抛出:

UnsupportedOperationException - unsupportedOperationException

nextInt

public int nextInt()

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

覆盖:

nextInt 在类中 Random

返回:

the random int

nextInt

public int nextInt(int n)

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

覆盖:

nextInt 在类中 Random

参数:

n - the specified exclusive max-value

返回:

the random int

抛出:

IllegalArgumentException - when n <= 0

nextLong

public long nextLong()

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

覆盖:

nextLong 在类中 Random

返回:

the random long

nextLong

public static long nextLong(long n)

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

参数:

n - the specified exclusive max-value

返回:

the random long

抛出:

IllegalArgumentException - when n <= 0

nextBoolean

public boolean nextBoolean()

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

覆盖:

nextBoolean 在类中 Random

返回:

the random boolean

nextFloat

public float nextFloat()

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

覆盖:

nextFloat 在类中 Random

返回:

the random float

nextDouble

public double nextDouble()

Synonymous to the Math.random() call.

覆盖:

nextDouble 在类中 Random

返回:

the random double