This Keyword

1. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class N
{ 
 N(int i)
 { 
  this();
  System.out.println("N(int)");
 }
 
 N()
 {
  System.out.println("N()");
 }
 
 public static void main(String[] args)
 {
  N n1 = new N();
  System.out.println("------");
  N n2 = new N(10);
  System.out.println("------");
  
 }
}

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2. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class O
{ 
 O()
 {
  this(10);
  System.out.println("O()");
 }
 
 O(int i)
 { 
  System.out.println("O(int)");
 }
 
 public static void main(String[] args)
 {
  O o1 = new O();
  System.out.println(".........");
  O o2 = new O(50);
  System.out.println(".........");
  
 }
}

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3. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class P
{ 
 P()
 {
  this(10 , 20);
  System.out.println("P()");
 }
 
 P(int i, int j)
 { 
  System.out.println("P(int , int )");
 }
 
 public static void main(String[] args)
 {
  P p1 = new P();
  System.out.println("------");
  P p2 = new P(10 , 20);
  System.out.println("------");
  
 }
}

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4. Program

//Find what it gives Compiletion Error / Compiletion Successfully / Output ? 
class Q
{ 
 Q()
 {
  this(10);
  System.out.println("Q()");
 }
 
 Q(int i)
 { 
  this(1 , 20);
  System.out.println("Q(int)");
 }
 
 Q(int i, int j)
 {
  System.out.println("Q(int , int)");
 }
 public static void main(String[] args)
 {
  Q q1 = new Q();
  System.out.println("------");
  Q q2 = new Q(10 , 20);
  System.out.println("------");
  Q q3 = new Q(30);
  System.out.println("------");
  
 }
}

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