Java4

NewClass

import java.util.Scanner;

/*
 Calculator
 */
public class NewClass {

    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("Enter 1st number");
        int x = sc.nextInt();
        System.out.println("Enter 2nd number");
        int y = sc.nextInt();
        boolean b = true;
        System.out.println("Enter operator");
        String ops = sc.next();
        char op = ops.charAt(0);
        int result = 0;
        switch (op) {
            case '+':
              result = x + y;
                break;
            case '-':
                result = x - y;
                break;
            case '*':
                result = x * y;
                break;
            case '/':
                if(y!=0){
                result = x / y;
                }else{
                    b = false;
                    System.err.println("Can't divid by zero");
                }
                break;

            default:
                b = false;
                System.out.println("Wrong operator");
        }
        if(b)
        System.out.println("The result = "+result);

    }

}

NewClass1

import java.util.Scanner;

public class NewClass1 {

    public static void main(String[] args) {
        int x = 5;
        int i = 0;
        Scanner sc = new Scanner(System.in);
        for (; i < 3; i++) {
            System.out.println("Guess Number from 0 to 100");
            int y = sc.nextInt();
            if(y == x){
                System.out.println("You win");
                break;
            }else{
                if(i<2)
                System.out.println("Try Again");
            }
        }
       
        if(i==3){
            System.out.println("you lose");
            System.err.println("Game Over");
        }
    }

}

NewClass2

public class NewClass2 {

    public static void main(String[] args) {
        int m = 6;
        int n = 6;
        int a = 4;
        int k = 0;
        k = m / a;
        int j = 0;
        j = n / a;
        if (m % a != 0) {
            k = k + 1;
        }
        if (n % a != 0) {
            j = j + 1;
        }

        System.out.println(k * j);

    }

}

NewClass3

public class NewClass3 {

    public static void main(String[] args) {
        double m = 6;
        double n = 6;
        double a = 4;
   
        double k = m/a;
        double j = n/a;
       
        double f = Math.ceil(k)* Math.ceil(j);
        System.out.println(f);
        
       
    }
}

NewClass4

public class NewClass4 {
 public static void main(String[] args) {
     for (int i = 0; i <4; i++) {
         for(int j =0 ; j<=i ; j++){
             System.out.print("*");
         }
         System.out.println("");
     }
}
   
}

NewClass5

public class NewClass5 {
  public static void main(String[] args) {
   String s ="";
      for (int i = 0; i <4; i++) {
          s =s +"*";
          System.out.println(s);
      }
}
  
}