java random number
import java.util.Random;
Random rand = new Random();
// Obtain a number between [0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
java random number
import java.util.Random;
Random rand = new Random();
// Obtain a number between [0 - 49].
int n = rand.nextInt(50);
// Add 1 to the result to get a number from the required range
// (i.e., [1 - 50]).
n += 1;
java math.random
int rand = (int)(Math.random() * range) + min;
math.random java
// int rand = (int)(Math.random() * range) + min;
// Java program to demonstrate Math.random() working
// of java.lang.Math.random() method
import java.lang.Math;
class Gfg2 {
// driver code
public static void main(String args[])
{
// define the range
int max = 10;
int min = 1;
int range = max - min + 1;
// generate random numbers within 1 to 10
for (int i = 0; i < 10; i++) {
int rand = (int)(Math.random() * range) + min;
// Output is different everytime this code is executed
System.out.println(rand);
}
}
}
Generate Random number using Math.random in Java
class GenerateRandom {
public static void main( String args[] ) {
int min = 50;
int max = 100;
//Generate random int value from 50 to 100
System.out.println("Random value in int from "+min+" to "+max+ ":");
int random_int = (int)Math.floor(Math.random()*(max-min+1)+min);
System.out.println(random_int);
}
}
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