how to define functions in java code example

Example 1: calling method in java

public class MyClass {
 
    void myMethod() {
        System.out.println("You have called me! My name is: myMethod!");
    }
 
    public static void main(String[] args) {
        new MyClass().myMethod();
    }
}

Example 2: java methods

public class MyClass {
  static int myMethod(int x) {
    return 5 + x;
  }

  public static void main(String[] args) {
    System.out.println(myMethod(3));
  }
}
// Returns 8