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);
}
}
}java math random
// Math.random() returns a random number between 0.0-0.99.
double rnd = Math.random();
// rnd1 is an integer in the range 0-9 (including 9).
int rnd1 = (int)(Math.random()*10);
// rnd2 is in the range 1-10 (including 10). The parentheses are necessary!
int rnd2 = (int)(Math.random()*10) + 1;
// rnd3 is in the range 5-10 (including 10). The range is 10-5+1 = 6.
int rnd3 = (int)(Math.random()*6) + 5;
// rnd4 is in the range -10 up to 9 (including 9). The range is doubled (9 - -10 + 1 = 20) and the minimum is -10.
int rnd4 = (int)(Math.random()*20) - 10;Copyright © 2021 Codeinu
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