This Keyword

5. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
//With Out This Keyword
class A
{ 
    int id;  
      
    A(int id)
 {  
  id = id;    
    }  
    void test()
 {
  System.out.println(id);
 }  
  
    public static void main(String args[])
 {  
  A a1 = new A(1);  
  A a2 = new A(2);  
  a1.test();  
  a2.test();  
    }  
}  

---

6. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
//With This Keyword
class B
{ 
    int id;  
      
    B(int id)
 {  
  this.id = id;    
    }  
    void test()
 {
  System.out.println(id);
 }  
  
    public static void main(String args[])
 {  
  B b1 = new B(101);  
  B b2 = new B(201);  
  b1.test();  
  b2.test();  
    }  
}  

---

7. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class C
{  
 void test3()
 { 
  System.out.println("test3");  
  test2(); //complier will add this automatically 
 }  

 void test1()
 {  
  System.out.println("test1");  
 }  
 
 void test2()
 {   
  System.out.println("test2");
  this.test1(); //NO need to put this 
 }  
 
 public static void main(String args[])
 {   
  C c1 = new C();
  c1.test3();
 }  
 
}  

---

8. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class D
{  
 void test2()
 {  
  System.out.println("test2");  
  test1(this);  
 }   
 
 void test1(D d2)
 {  
  System.out.println("test1");  
 }  
    
 public static void main(String args[])
 {  
  D d1 = new D();  
  d1.test2();  
 }  
}  

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