How can I generate random booleans in Java?



To generate random booleans like TRUE or FALSE, at first create a new Random object −

Random randNum = new Random();

Now, loop through the count of booleans you want and generate random booleans with nextBooleans() method −

for (int i = 1; i <= 5; ++i) {    booleanrandomRes = randNum.nextBoolean();    System.out.println(randomRes); }

Example

 Live Demo

import java.util.Random; public class Demo {    public static final void main(String... args) {       Random randNum = new Random();       System.out.println("Displaying random Booleans...");       for (int i = 1; i <= 5; ++i) {          boolean randomRes = randNum.nextBoolean();          System.out.println(randomRes);       }    } }

Output

Displaying random Booleans... true false false true true

Let us run it again to get distinct random boolean −

Displaying random Booleans... false false true true false
Updated on: 2019-07-30T22:30:25+05:30

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