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) {
    Stream.generate(new Random()::nextInt).limit(5).forEach(System.out::println);
}

From source file:Main.java

public static void main(String[] argv) {
    Random r = new Random();
    int randint = r.nextInt(10);
    System.out.println(randint);/*from w w w  . j  a va 2 s .  c  om*/
}

From source file:RandDemo.java

public static void main(String args[]) {
    Random r = new Random();
    double val;
    double sum = 0;
    int bell[] = new int[10];

    for (int i = 0; i < 100; i++) {
        val = r.nextGaussian();
        sum += val;
        double t = -2;
        for (int x = 0; x < 10; x++, t += 0.5)
            if (val < t) {
                bell[x]++;//from  w w w. j a  v  a2 s  .co  m
                break;
            }
    }
    System.out.println("Average of values: " + (sum / 100));

    for (int i = 0; i < 10; i++) {
        for (int x = bell[i]; x > 0; x--)
            System.out.print("*");
        System.out.println();
    }
}

From source file:Main.java

public static void main(String[] args) {
    Stream.generate(new Random()::nextDouble).limit(10).forEach(System.out::println);

}

From source file:MainClass.java

public static void main(String args[]) {
    Random randomNumbers = new Random(); // random number generator
    int face; // stores each random integer generated

    for (int i = 1; i <= 20; i++) {
        // pick random integer from 1 to 6
        face = 1 + randomNumbers.nextInt(6);

        System.out.printf("%d  ", face);

        // if i is divisible by 5, start a new line of output
        if (i % 5 == 0)
            System.out.println();
    }/* w  w w.jav  a2 s.  c  o  m*/
}

From source file:Main.java

public static void main(String[] args) {
    Random num = new Random();
    int num0, num1, num2, num3, num4, num5, num6, num7;

    num0 = num.nextInt(7) + 1;//  www.jav  a  2 s . co m
    num1 = num.nextInt(8);
    num2 = num.nextInt(8);
    num3 = num.nextInt(643) + 101;
    num4 = num.nextInt(10);
    num5 = num.nextInt(10);
    num6 = num.nextInt(10);
    num7 = num.nextInt(10);

    String randnum = "A random phone number: ";
    System.out.print(randnum);
    System.out.print(num0);
    System.out.print(num1);
    System.out.print(num2);
    System.out.print("-" + num3 + "-");
    System.out.print(num4);
    System.out.print(num5);
    System.out.print(num6);
    System.out.println(num7);
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    int[] ints = new Random().ints(1, 50).distinct().limit(6).toArray();
    System.out.println(Arrays.toString(ints));
}

From source file:Main.java

public static void main(String[] args) {
    Random randomGenerator = new Random();
    BigInteger randomInteger = new BigInteger(1024, randomGenerator);
    System.out.println(randomInteger);
}

From source file:Main.java

public static void main(String[] args) {

    Random rand = new Random();

    int randnumb;
    int array[] = new int[5];
    for (int j = 0; j <= 4; j++) {
        randnumb = 1 + rand.nextInt(11);
        array[j] = randnumb;//from  w  w w.  j  a v  a  2  s  . co  m
    }
    System.out.println(Arrays.toString(array));

}

From source file:Main.java

public static void main(String args[]) {

    Random randomno = new Random();

    // create byte array
    byte[] nbyte = new byte[30];

    // put the next byte in the array
    randomno.nextBytes(nbyte);//ww w .j  av  a 2 s. c o  m

    // check the value of array   
    System.out.println("Value of byte array: " + Arrays.toString(nbyte));
}