Arithmetic Operations Menu Java Program

Arithmetic Operations Menu Java Program

Displays menu, based on user option performing arithmetical operations and displays result.

import java.util.*; 
class  Menu 
{  
public static void main(String args[]) 
{ 

 Maths J=new Maths();  
 while(true) {
 System.out.println(" \t\t\t menu driven"); 
 System.out.println("\n\n 1.Addition\n2.Subtraction\n3.multiplication\n4.division\n5.modulus\n6.Exit"); 
 Scanner Sc=new Scanner(System.in); 
 System.out.println("Enter the option to be performed: "); 
 int opt=Sc.nextInt(); 
 switch(opt) 
 { 
       case 1: 
 	J.add();  	
        break;  	
       case 2: 
 	J.sub();  	
        break;  	
       case 3: 
 	J.mul();  	
        break;  	
       case 4:  	
        J.div();  	
        break;  	
       case 5: 
 	J.mod();  	
        break;  	
       case 6:
 	 System.exit(0);
 	 break; 
       default:
        System.out.println("invalid choice");
        break;
   }  
   } 
 }
} 
class Maths
{  
 	public int a=20,b=10; 
 	void add() 
 	{ 
 	int c=a+b; 
 	System.out.println("sum is"+c); 
 	} 
 	void sub() 
 	{ 
 	int c=a-b; 
 	System.out.println("subtraction is "+c); 
 	} 
 	void mul() 
 	{ 
 	int c=a*b; 
 	System.out.println("multiplication is "+c); 
 	} 
 	void div() 
 	{ 
 	int c=a/b; 
 	System.out.println("division is "+c) ; 
 	} 
 	void mod() 
 	{ 
 	int c=a%b; 
 	System.out.println("modulus is "+c); 
 	} 
} 

D:\Java_Programs>javac Menu.java

D:\Java_Programs>java Menu
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
1
sum is30
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
2
subtraction is 10
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
3
multiplication is 200
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
4
division is 2
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
5
modulus is 0
                         menu driven


 1.Addition
2.Subtraction
3.multiplication
4.division
5.modulus
6.Exit
Enter the option to be performed:
6

D:\Java_Programs>