Object Oriented Programming OOP Concepts Plymorphism in Java

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Plymorphism
- Overloading - Static Binding
 - Overriding - Dynamic Binding

Output:

//ClsCalculator objClsCalculator = new ClsCalculator();

Base class output start 

1 + 1 = 2

100.1 + 100.1 = 200.2

Base class output end 

//ClsCalculator objClsAdvCalculator = new ClsAdvCalculator();

Sub class output Start 

Sub class output 1 + 1 = 2

Sub class output  100.1 + 100.1 = 200.2

Sub class output end 

ClsCalculator.java

/**
 * 
 */
package plymorphism.tutorialbyexample.com;

/**
 * @author Vinod Kumar
 *
 */
public class ClsCalculator {

 /**
  * Default constructor of ClsCalculator
  */
 public ClsCalculator() {
  // TODO Auto-generated constructor stub
 }

 /**
  * Addition of two number and print the value in console and return the
  * number as output.
  * 
  * @param parameter1
  * @param parameter2
  * @return
  */
 public int addition(int parameter1, int parameter2) {
  // addResult the local variable for storing the add result and used in
  // print
  // method and return.
  int addResult = parameter1 + parameter2;
  // Private method for internal use not outside of world
  print(parameter1, parameter2, addResult);
  return addResult;

 }
 
 public float addition(float parameter1, float parameter2) {
  // addResult the local variable for storing the add result and used in
  // print
  // method and return.
  float addResult = parameter1 + parameter2;
  // Private method for internal use not outside of world
  print(parameter1, parameter2, addResult);
  return addResult;

 }

 /**
  * Private method for printing the addition of input and output
  * 
  * @param arg1
  * @param arg2
  * @param argAdd
  */
 private void print(int arg1, int arg2, int argAdd) {
  System.out.println("" + arg1 + " + " + arg2 + " = " + argAdd);
 }

 /**
  * Private method for printing the addition of input and output
  * 
  * @param arg1
  * @param arg2
  * @param argAdd
  */
 private void print(float arg1, float arg2, float argAdd) {
  System.out.println("" + arg1 + " + " + arg2 + " = " + argAdd);
 }
 
}

ClsAdvCalculator.java

/**
 * 
 */
package plymorphism.tutorialbyexample.com;

/**
 * @author Vinod Kumar
 *
 */
public class ClsAdvCalculator extends ClsCalculator {

 /**
  * Default constructor of ClsCalculator
  */
 public ClsAdvCalculator() {
  // TODO Auto-generated constructor stub
 }

 /**
  * Addition of two number and print the value in console and return the
  * number as output.
  * 
  * @param parameter1
  * @param parameter2
  * @return
  */
 public int addition(int parameter1, int parameter2) {
  // addResult the local variable for storing the add result and used in
  // print
  // method and return.
  int addResult = parameter1 + parameter2;
  // Private method for internal use not outside of world
  print(parameter1, parameter2, addResult);
  return addResult;

 }

 /**
  * Addition of two number and print the value in console and return the
  * number as output.
  * 
  * @param parameter1
  * @param parameter2
  * @return
  */
 public float addition(float parameter1, float parameter2) {

  // addResult the local variable for storing the add result and used in
  // print
  // method and return.
  float addResult = parameter1 + parameter2;
  // Private method for internal use not outside of world
  print(parameter1, parameter2, addResult);
  return addResult;
 }

 /**
  * Private method for printing the addition of input and output
  * 
  * @param arg1
  * @param arg2
  * @param argAdd
  */
 private void print(int arg1, int arg2, int argAdd) {
   System.out.println("Sub class output " + arg1 + " + " + arg2 + " = " + argAdd);
 }

 /**
  * Private method for printing the addition of input and output
  * 
  * @param arg1
  * @param arg2
  * @param argAdd
  */
 private void print(float arg1, float arg2, float argAdd) {
   System.out.println("Sub class output  " + arg1 + " + " + arg2 + " = " + argAdd);
 }

}

MainAppOfCalculator.java

/**
 * 
 */
package plymorphism.tutorialbyexample.com;

/**
 * @author Vinod Kumar
 *
 */
public class MainAppOfCalculator {

 /**
  * Default Constructor of MainAppOfCalculator
  */
 public MainAppOfCalculator() {
  // TODO Auto-generated constructor stub
 }

 /**
  * Main method for creation the instance of {@link ClsCalculator}
  * ClsCalculator instance as object
  * 
  * @param a
  */
 public static void main(String a[]) {
  System.out.println("Base class output start ");
  // Creating the instance of ClsCalculator() class.
  ClsCalculator objClsCalculator = new ClsCalculator();
  // Calling the addition method with two int parameter
  objClsCalculator.addition(1, 1); // This is from base class
      // ClsCalculator
  // Calling the addition method with two float parameter
  objClsCalculator.addition(100.1f, 100.1f); // This is from base class
             // ClsCalculator
  System.out.println("Base class output end ");
  System.out.println("");

  System.out.println("Sub class output Start ");
  ClsCalculator objClsAdvCalculator = new ClsAdvCalculator();
  objClsAdvCalculator.addition(1, 1); // This is from sub class
      // ClsCalculator
  objClsAdvCalculator.addition(100.1f, 100.1f); // This is from sub class
              // ClsCalculator
  System.out.println("Sub class output end ");

 }
}