java–Switch Case

java–Switch Case

 

 

import java.util.Scanner;

public class Switch {

    static Scanner a = new Scanner(System.in);

    public static void main(String[] args) {

        int b;

        System.out.println("ENter :");

        b = a.nextInt();

        switch(b)

        {

        case 1:

            System.out.println("1");

        break;

        case 2:

            System.out.println("2");

        break;

        case 3:

            System.out.println("3");

        break;

        default:

            System.out.println("4");

        }

    }

}

Java – Random

Java – Random

 

import java.util.Random;

public class randoms {

    public static void main(String[] args) {

        Random  dice = new Random();

        int a;

        for(int i = 0;i<10;i++)

        {

            a=dice.nextInt(6);    

            System.out.println(a);

        }

    }

}

JAVA- Math class Method - 1

Math.pow()

 

 

import java.util.Scanner;

public class POwer {

    public static void main(String[] args) {

        Scanner v = new Scanner(System.in);

        int a;

        System.out.println("Enter a number :");

        a= v.nextInt();

        System.out.println("Result is "+Math.pow(2, a));

    }

}

 

 

Math.abs();

public class AbsMAthClass {

 public static void 

main(String[] args) {

System.out.println(Math.abs(-26.3));

 }

}

        Math.ceil()
        Math.floor();
        Math.max();
        Math.min();
        Math.sqrt();

public class MathClassMethod {

 public static void main(String[] args) 

{

System.out.println(Math.ceil(26.3));

System.out.println(Math.floor(26.3));

System.out.println(Math.max(8,6));

System.out.println(Math.min(8,6));

System.out.println(Math.sqrt(25));

 }

}