Wednesday, February 4, 2015
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Polymorphism
We are going to create four Java class in our Polymorphism class. Those are:
1. human.java class
2. women.java class
3. men.java class
4. main.java class
Polymorphism Classes |
The codes are given below.
1. human.java
package polymorphism; /* What is polymorphism ? Answer: Coming out in different form when needed is called polymorphism. Polymorphism is a OOP ( Object Oriented Programming concept ). In more words, Java's polymorphism means the ability of Java's ability utilize objects depending on their particular data type and class. This is my super class. */ public class human { public void goodPublic(){ System.out.println(" In java human class " + "im printing good human method to understand polymorphism"); } }
2. women.java
package polymorphism; // This is my subclass public class women extends human{ public void goodPublic(){ System.out.println("This is a method printed output from WOmen class"); } }
3. men.java
package polymorphism; // this is my subclass public class men extends human { public void goodPublic(){ System.out.println("This is a method printed output from men class"); } }
4. main.java
package polymorphism; public class main { public static void main(String[] args) { /* Creating object of human class using inheritance OOP concept! We can create object as below using the inheritance as those sub class inherits human super class. In Below, meHuman,goodMen,goodWomen are reference variable. human is working as data type. */ human meHuman = new human(); human goodMen = new men(); human goodWomen = new women(); /* Now I'm going to create a Polymorphism array below of the super class and put the subclass objects there. */ human[] polymorphicArray = new human[3]; polymorphicArray[1] = new women(); polymorphicArray[2] = new men(); polymorphicArray[3] = new human(); // Printing those methods from subclass polymorphicArray[1].goodPublic(); polymorphicArray[2].goodPublic(); /* Here, this array is a array of polymorphism. This array has the ability to utilize objects differently depending on data type or class. */ } /* In final words, if u call a animal Sound super class and cat, dog subclass. no matter what the animal is working with the animal sound will return you the real animal sound. so, animal sound method is working as cat sound once and dog sound once. That's the different form! That's called polymorphism. */ }Overriding: In inherited subclass, if a method uses same name as the method declared in super class but the different method body is called as overriding.
Overloading: In inherited subclass, if a method uses same name as the method declared in super class but the different method body and different arguments is called as Overloading.
Read More: What are actually taught in computer science and Engineering ( CSE ) ?
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