How to call a method in Java? SDET Interview questions 2020

SDET Interview questions: How to access methods of a class in Java?

There are two ways to access method in class.

1. By creating object of class

2. Using static : If we use static then we can access the method without creating object of the class

Example of By creating object of class:

public class configReader {
     
  public int methodtwo(int a, int b)

// int is return type and public is access modifier. int a and int b are input parameters

{
      int sum = a+ b;
      return sum;
     
  }
 
  public static void main(String[] args) {
   
      configReader md = new configReader();  //Object Creation
      int result = md.methodtwo(2,3);               // access method by using object
      System.out.println(result);
  }
 
}

Example of accessing method with Static:

public class configReader {
 
  public static  int methodone(int a, int b) {

//static has been used so that with class name we can access the method

      int sum = a+ b;
      return sum;
  }
 
  public static void main(String[] args) {
      int resultone = methodone(3,4);            //accessing method directly without object

     System.out.println(resultone );

  }
}

If we want to access the same method in another class then use classname:

configReader.methodone(3,4)

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