Method area, Stack area, Types of methods

Method area:

Method area is the memory where class is loaded along with that static variables and constants are defined.

Stack area: 

Stack is a memory area where a method is loaded and its execution takes place.

Write a java program consist of add method to perform addition of two numbers.

1. class Addition
2. {  
3. public static void add( )                                                   //Called statement
4. {
5. int a = 10;
6. int b =20;
7. int c =a+b;
8. System.out.println(c);
9. }
10. public static void main(String [] args)                           //Calling statement
11. {
12. System.out.println("MB");
13. add( );
14. System.out.println("ME");
15. }
16. } 

Output:

MB                                                        
30                                                          

ME                                                        
                                                              

                                                              
                                                              

Types of methods

1. No Argument Method.
2. Parameterized. 

No Argument Method	Parameterized Method
Definitiion: The method which does not have any formal arguments	Definitiion: The methods which has formal arguments
Program:            public static void add( )            {               int a = 3;               int b = 2;               Int c = a+b;               System.out.println(c);            }	Program:               public static void add(int a, int b )            {               Int c = a+b;               System.out.println(c);            }
Output:                 50	Output:  add(10,20)     //30 add(2,3)         //5 add(-4,5)       //1

Formal arguments    Variables declared inside method.

Actual arguments    Data passed inside method calling statement.

Write a java program to perform multiplication of 3 numbers using multiply method.

1. class Multiplication
2. {  
3. public static void multiply( int a, int b, int c )                                                  
4. {
5. int d =a*b*c;
6. System.out.println(c);
7. }
8. public static void main(String [] args)                          
9. {
10. multiply(2,3,5);
11. }
12. } 

Output:

30                                                         
                                                             

                                                             

Program for calculator