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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
Updated on: 30-Jul-2019
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