generate random number java code example
Example 1: java random number
import java.util.Random;
Random rand = new Random();
int n = rand.nextInt(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: how to create a random number in java
import java.util.Random;
class scratch{
public static void main(String[] args) {
Random rand = new Random();
System.out.println( rand.nextInt(5) );
}
}
Example 4: 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 5: 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 6: generate random number java
(Math.random() * ((max - min) + 1)) + min