random int in java code example

Example 1: java random number

import java.util.Random;

Random rand = new Random();

// Obtain a number between [0 - 49].
int n = rand.nextInt(50);

// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;

Example 2: java random numbers in specific range

import java.util.Random;

Random rand = new Random();
int random_integer = rand.nextInt(upperbound-lowerbound) + lowerbound;

Example 3: random number in range java

(int)(Math.random() * ((max - min) + 1)) + min
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Example 4: random numbers java

int random = (int) (Math.random()*(max-min+1)+min);

Example 5: how to generate random number in java

double x = (Math.random()*((max-min)+1))+min;

Example 6: java generate random integer in range

import java.util.concurrent.ThreadLocalRandom;

// nextInt is normally exclusive of the top value,
// so add 1 to make it inclusive
int randomNum = ThreadLocalRandom.current().nextInt(min, max + 1);