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 long getRandomLong3() {
    Random rd = new Random();
    long l2 = 0;// ww  w .ja v  a 2 s.c  om
    l2 = (int) (Math.random() * 300);
    return l2;
}

From source file:Main.java

public static long nextPositiveLong() {
    Random random = new Random();
    return (long) (random.nextDouble() * Long.MAX_VALUE);
}

From source file:Main.java

public static String getRandColorCode() {
    String r, g, b;/*from w  w  w .  jav a 2  s.c  o  m*/
    Random random = new Random();
    r = Integer.toHexString(random.nextInt(256)).toUpperCase();
    g = Integer.toHexString(random.nextInt(256)).toUpperCase();
    b = Integer.toHexString(random.nextInt(256)).toUpperCase();
    r = r.length() == 1 ? "0" + r : r;
    g = g.length() == 1 ? "0" + g : g;
    b = b.length() == 1 ? "0" + b : b;
    return r + g + b;
}

From source file:Main.java

public static int generateBeautifulColor() {
    Random random = new Random();

    int red = 30 + random.nextInt(200);
    int green = 30 + random.nextInt(200);
    int blue = 30 + random.nextInt(200);
    return Color.rgb(red, green, blue);
}

From source file:Main.java

public static String genNum() {
    int max = 200;
    int min = 100;
    Random random = new Random();
    int s = random.nextInt(max) % (max - min + 1) + min;
    return s + "";
}

From source file:Main.java

public static int genrateBeautifulColor() {
    Random random = new Random();

    int red = 30 + random.nextInt(200);
    int green = 30 + random.nextInt(200);
    int blue = 30 + random.nextInt(200);

    return Color.rgb(red, green, blue);
}

From source file:Main.java

public static void shuffle_array(int[] array) {
    int index, temp;
    Random random = new Random();
    for (int i = array.length - 1; i > 0; i--) {
        index = random.nextInt(i + 1);//from w  ww .j av  a  2s.c o  m
        temp = array[index];
        array[index] = array[i];
        array[i] = temp;
    }
}

From source file:Main.java

public static int randomIndex(int count) {
    Random random = new Random();
    return random.nextInt(count);
}

From source file:Main.java

public static long getRandomLong4() {
    Random rd = new Random();
    long l2 = 0;//from w ww  .  j a v a 2  s  . c  o m
    for (int i = 1; i < 100; i++) {
        long l1 = (int) (Math.random() * 9000 + 1000);
        l2 = rd.nextInt(9000) + 1000;
    }
    return l2;
}

From source file:Main.java

/**
 * Returns a random int between 0 and 999.
 *//*w  ww .jav a  2 s.  com*/
public static int getRandom() {
    return new Random().nextInt(999);
}