Sabtu, 25 April 2015

JAVA - How To Create A Generic Class In Java NetBeans

JAVA - How To Create Your Own Generic Class In Java NetBeans

In This Java Code We Will See How To Create A Generic Class Example In Java Programming Language.

Source Code:

package javaapp;
public class Woirk {

//create a generic class

public static class GenericClass<T,K>{
//create two attribute
//T and K are types now
private T Tval;
private K Kval;

//create a constructor without parameters
public GenericClass(){
this.Tval = null;
this.Kval = null;
}
//create a constructor with parameters
public GenericClass(T tval, K kval){
this.Tval = tval;
this.Kval = kval;
}

//get the value from Tval
public T getTVal(){
return this.Tval;
}

//set a value to Tval
public void setTVal(T t){
this.Tval = t;
}

//get the value from Kval
public K getKVal(){
return this.Kval;
}

//set a value to Kval
public void setKVal(K k){
this.Kval = k;
}

public void printValues(){
System.out.println(this.Tval+" - "+this.Kval);
}

}

public static void main(String[] args){

GenericClass<Integer,String> gc;
gc = new GenericClass<Integer,String>();
gc.printValues();
gc = new GenericClass<Integer,String>(11111,"JAVA");
gc.printValues();
gc = new GenericClass<Integer,String>(22222,"CSHARP");
gc.printValues();
gc.setTVal(33333);
gc.setKVal("PHP");
System.out.println(gc.getTVal()+" - "+gc.getKVal());
}


}

//////////OUTPUT:

null - null
11111 - JAVA
22222 - CSHARP

33333 - PHP