Methods in Java

Methods

Methods are the block of code that performs a specific task. To declare a method, you must go outside the main method.

Things To Remember

• Methods are also known as functions.
• Method only runs when it is called.
• We can create multiple methods and call multiple times.

Advantages

• We can reuse our code.
• We can create different methods for different purposes.
• It will reduce code duplication.
• We can divide complex problems into multiple chunks.

How To Create A Method

We must create a method inside the class. We already have pre-build methods, and we can also create and use our methods. We will learn it later.

Syntax

returnType myMethod() {
    // method body here
}

• returnType Specifies the return type of the method. It can be void, int, float, boolean, or any other type. For example, if a method has a String return type, it returns a String value. If the method does not return a value, its return type is void.
• myMethod() is the name of the method.
• {} is starting and ending block of the method.

Example Of Method

public class Main {
          
    public static void main(String[] args) {
        printName();
    }
    static void printName() {
        System.out.println("Hi I am Rahul!");
    }
}

Hi I am Rahul!

• printName() is the name of the method.
• static means that the method belongs to the Main class and not an object of the Main class. We will learn class and object later.
• void means it does not have a return value. This method does not return a value, so its return type is void.
• printName();. The main method is used to call a method. Method couldn’t run if we don’t call it.