Example usage for java.util Random Random

Introduction

In this page you can find the example usage for java.util Random Random.

Prototype

public Random()

Source Link

Document

Creates a new random number generator.

Usage

From source file:Main.java

public static void main(String args[]) {

    Random randomno = new Random();

    // get next next pseudorandom value 
    int value = randomno.nextInt();

    // check the value  
    System.out.println("Value is: " + value);
}

From source file:Main.java

public static void main(String args[]) {

    Random randomno = new Random();

    // get next next boolean value 
    boolean value = randomno.nextBoolean();

    // check the value  
    System.out.println("Value is: " + value);
}

From source file:Main.java

public static void main(String args[]) {

    Random randomno = new Random();

    // setting seed
    randomno.setSeed(20);/*from w ww .j a  v a2 s.  c  o  m*/

    // value after setting seed
    System.out.println("Object after seed: " + randomno.nextInt());
}

From source file:Main.java

public static void main(String args[]) {

    Random randomno = new Random();

    // get next long value 
    long value = randomno.nextLong();

    // check the value  
    System.out.println("Long value is: " + value);
}

From source file:Main.java

public static void main(String... args) {

    Random rand = new Random();
    int[] a = new int[100];
    for (int i = 0; i < 100; i++) {
        a[i] = rand.nextInt(100);//from   w  w  w .  j  ava 2 s  . co  m
        System.out.print(a[i] + ", ");
        if ((i + 1) % 10 == 0) {
            System.out.println();
        }
    }
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    Random rand = new Random();
    long seed = rand.nextLong();
    rand = new Random(seed);
    Random rand2 = new Random(seed);
}

From source file:Main.java

public static final void main(String... args) {
    Random randomGenerator = new Random();
    for (int idx = 1; idx <= 10; ++idx) {
        boolean randomBool = randomGenerator.nextBoolean();
        System.out.println("Generated : " + randomBool);
    }//from w  ww. ja  v  a 2 s .c o  m
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Random rand = new Random();

    byte[] bytes = new byte[5];
    rand.nextBytes(bytes);// ww  w  .  j a  v  a 2  s. com
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Random rand = new Random();

    int n = 10;//w w w  .  j  a v a2  s  . c o m
    int i = rand.nextInt(n + 1);
    System.out.println(i);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {

    Random rand = new Random();

    boolean b = rand.nextBoolean();
    long l = rand.nextLong();
    float f = rand.nextFloat(); // 0.0 <= f < 1.0
    double d = rand.nextDouble(); // 0.0 <= d < 1.0
}