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Java Program to generate custom random number -1 or 1
To generate custom random number 1 or -1, you need to use nextBoolean(). At first take a loop and create a Random object on each iteration −
for (int i = 0; i < 5; i++) { Random rand = new Random(); }
Now, use nextBoolean() to generate 1 on TRUE condition, ekse -1 −
for (int i = 0; i < 5; i++) { Random rand = new Random(); if (rand.nextBoolean()) System.out.println(1); else System.out.println(-1); }
Example
import java.util.Random; public class Demo { public static void main(String[] args) { for (int i = 0; i < 5; i++) { Random rand = new Random(); if (rand.nextBoolean()) System.out.println(1); else System.out.println(-1); } } }
Output
1 -1 -1 -1 -1
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