random integer generator java code example
Example 1: how to generate a random number in java
import java.util.Random;
Random rand = new Random();
int maxNumber = 10;
int randomNumber = rand.nextInt(maxNumber) + 1;
System.out.println(randomNumber);
Example 2: Random number generator in java
import java.util.Random;
public class JavaRandomClass
{
public static void main(String[] args)
{
Random random = new Random();
int randInt1 = random.nextInt(1000);
int randInt2 = random.nextInt(1000);
System.out.println("Random Integers: " + randInt1);
System.out.println("Random Integers: " + randInt2);
double randDou1 = random.nextDouble();
double randDou2 = random.nextDouble();
System.out.println("Random Doubles: " + randDou1);
System.out.println("Random Doubles: " + randDou2);
}
}
Example 3: java generate random integer in range
import java.util.concurrent.ThreadLocalRandom;
int randomNum = ThreadLocalRandom.current().nextInt(min, max + 1);
Example 4: random number generator java
import java.util.Random;
class GenerateRandom {
public static void main( String args[] ) {
Random rand = new Random();
int upperbound = 25;
int int_random = rand.nextInt(upperbound);
double double_random=rand.nextDouble();
float float_random=rand.nextFloat();
System.out.println("Random integer value from 0 to" + (upperbound-1) + " : "+ int_random);
System.out.println("Random float value between 0.0 and 1.0 : "+float_random);
System.out.println("Random double value between 0.0 and 1.0 : "+double_random);
}
}