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What is a Method?

• A method is a block of code that performs a specific task.
• Methods make code reusable and organized.

Basic Syntax:

    
    returnType methodName(parameters) {
        // code to execute
    }
    
    

Example:

    
    class Calculator {
        int add(int a, int b) {
            return a + b;
        }
    }

    public class Main {
        public static void main(String[] args) {
            Calculator calc = new Calculator();
            int sum = calc.add(5, 3);
            System.out.println("Sum: " + sum);
        }
    }
    
    

Output:

    
    Sum: 8
    
    

Important Parts of a Method:

Part	Meaning
returnType	What the method returns (e.g., int, void, String)
methodName	Name of the method
parameters	Input values (optional)
body	Code to execute

Types of Methods:

• Instance Methods → Belong to objects.
• Static Methods → Belong to class (use static keyword).

Example of static method:

    
    class MathOperations {
        static int square(int num) {
            return num * num;
        }
    }

    public class Main {
        public static void main(String[] args) {
            int result = MathOperations.square(5);
            System.out.println("Square: " + result);
        }
    }
    
    

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