Example usage for java.util Random nextInt

Introduction

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

Prototype

public int nextInt(int bound)

Source Link

Document

Returns a pseudorandom, uniformly distributed int value between 0 (inclusive) and the specified value (exclusive), drawn from this random number generator's sequence.

Usage

From source file:Main.java

public synchronized static String getRandomCode(int length) {
    String sRand = "";
    for (int i = 0; i < length; i++) {
        Random random = new Random();
        String rand = String.valueOf(random.nextInt(10));
        sRand += rand;/*w  w w.  java  2  s  .c  o m*/
    }
    return sRand;
}

From source file:Main.java

public static String getText(Document doc, String tagName, boolean flag) {

    NodeList nodeList = doc.getElementsByTagName(tagName);
    int leng = nodeList.getLength();
    if (leng <= 0)
        return "";

    Random rnd = new Random();
    int ran = rnd.nextInt(leng);

    return nodeList.item(ran).getTextContent();
}

From source file:Main.java

/**
 * Get a random color//from ww w.  java  2s  .c  o  m
 *
 * @return Random color
 */
public static int getRandomColor() {
    Random random = new Random();
    return Color.rgb(random.nextInt(sColor_Range), random.nextInt(sColor_Range), random.nextInt(sColor_Range));
}

From source file:cz.cuni.mff.d3s.spl.example.newton.app.Main.java

private static double[] generateCoefficients(Random random) {
    int n = random.nextInt(MAX_POLYNOM_DEGREE) + 1;
    double[] result = new double[n];
    for (int i = 0; i < n; i++) {
        double coeff = random.nextDouble() - 0.5;
        result[i] = coeff * COEFFICIENT_MULTIPLIER;
    }//from   w w w. j av a2 s . com
    return result;
}

From source file:Main.java

public static int generateAutomaticRoll() {
    Random random = new Random();
    int low = 1;/*from   www.j  a v  a2  s.c om*/
    int high = 100;
    return random.nextInt(high - low) + low;
}

From source file:Main.java

public static int randomInt(int min, int max) {
    Random random = new Random(System.currentTimeMillis());
    return min + random.nextInt(max - min);
}

From source file:Main.java

public static void changeRingtone(Context context) {

    SharedPreferences preferences = context.getSharedPreferences("randomizer", Context.MODE_PRIVATE);
    if (!preferences.getBoolean("active", false))
        return;//from   ww w .  ja va2s.co m

    RingtoneManager mgr = new RingtoneManager(context);
    Random random = new Random(System.currentTimeMillis());

    int n = random.nextInt(mgr.getCursor().getCount());

    RingtoneManager.setActualDefaultRingtoneUri(context, RingtoneManager.TYPE_RINGTONE, mgr.getRingtoneUri(n));
}

From source file:Main.java

public static String get_Random_Color() {
    String[] arr = { "#f44336", "#ff4081", "#ff5722", "#ff9800", "#03a9f4", "#009688", "#388e3c" };
    Random rand = new Random();
    int max = 5;//from  w  w  w. j  ava  2  s .c  o  m
    int min = 0;
    int num = rand.nextInt((max - min) + 1 + min);
    return arr[num];
}

From source file:Main.java

private static String generateRandomCharacter() {
    final String alphabet = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
    final int length = alphabet.length();
    Random random = new Random();
    String randomChar = String.valueOf(alphabet.charAt(random.nextInt(length)));
    return randomChar;
}

From source file:Main.java

public static int rollDice(int number, int nSides) {
    int num = 0;/*from   w  w  w .  j  a va 2  s.co  m*/
    int roll = 0;
    Random r = new Random();
    if (nSides >= 3) {
        for (int i = 0; i < number; i++) {
            roll = r.nextInt(nSides) + 1;
            System.out.println("Roll is:  " + roll);
            num = num + roll;
        }
    } else {
        System.out.println("Error num needs to be from 3");
    }
    return num;
}