Calculator using java

/*

* Write a C program for performing as calculator which allows all Arithmetic Operators with operands from
* terminal

 */
package cb_pr176;
import java.util.Scanner;
/**
 **
 * @author Arif
 **/
public class Cb_pr176 {
    /*
     * @param args the command line arguments
     */
    public static void main(String[] args) {
    // TODO code application logic here
    Scanner inp=new Scanner(System.in);
    int a,b;
    float c = 0;
    char ch;
    System.out.println("Enter Your 1st number:");
    a=inp.nextInt();
    System.out.println("Enter your 2nd number:");
    b=inp.nextInt();
    System.out.println("Enter your choice, example: +, -, *, /");
    ch=inp.next().charAt(0);
    if (ch=='+')
        c=a+b;
    else if(ch=='-')
        c=a-b;
    else if(ch=='/')
        c=(float)a/(float)b;
    else if(ch=='*')
        c=a*b;
    System.out.println("The Result is:" + c);
         
    }
  }

Greatest Common Divisor or GCD : JAVA OOP

Write Java Source Code on Printing the Greatest Common Divisor or GCD in Recursion

Sample Output:
Enter the base number: 100
Enter the power: 45
The GCD of 2 numbers is: 5

Source Code

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//java class public class GCD {     public static int gcd(int num1, int num2)     {         if(num2 == 0)         {             return num1;         }         else         {             return gcd(num2, num1%num2);         }     } } //main class import java.util.Scanner; public class Main {     public static void main(String[] args)     {        Scanner input = new Scanner(System.in);       System.out.print("Enter the base number: ");       int num1 = input.nextInt();       System.out.print("Enter the power: ");       int num2 = input.nextInt();       GCD access = new GCD();       System.out.print("The GCD of 2 numbers is: " + access.gcd(num1, num2));     } }