Question

What is wrong in the following code? class TempClass { int i; public void TempClass(int j) { int i = j; } } public class C { public static void main(String[] args) { TempClass temp = new TempClass(2); } }

Answer 1

Answer:

In the given program,  a parameterized constructor declaration is wrong, which can be described as follows:

Explanation:

Code:

class TempClass //defining class TempClass

{

   int i; //defining integer varaible i

   TempClass(int j)//defining parameterized constructor

   {

   i = j; //variable holds a value

   System.out.print(i); //print value

   }

}

public class Main //defining class Main

{

   public static void main(String[] aw) //defining main method

   {

       TempClass temp =new TempClass(2); //creating class Object and call parameterized constructor.

   }

}

Description:

• In the given java code, two classes "TempClass and Main" is defined, inside the TempClass class an integer variable "i" and a parameterized constructor is declared, inside the constructor integer variable "i"  hold constructor parameter value, the use print method to prints its value.  
• Then the main class is defined, inside this main method is declared, in this method, the TempClass object "temp" is defined, that call the parameter constructor.