Why do we use methods in Java programming?

Java requires that a method declare the data type of the value that it returns . If a method does not return a value, it must be declared to return void . Methods can return either values of primitive data types or of reference data types.

A method is a block of code which only runs when it is called . You can pass data, known as parameters, into a method. Methods are used to perform certain actions, and they are also known as functions.

A main() method in java is an entry point to start the execution of a program . Every Java application has at least one class and at least one main method. Normally, an application consists of many classes and only one of the class needs to have a main method.

Method class provides information about, and access to, a single method on a class or interface . The reflected method may be a class method or an instance method (including an abstract method).