Determine If an Error Has Occurred During Object Construction

This can be achieved in Java by throwing an exception from your constructor. Since constructors cannot return a value, this is the only way to perform error handling.

     Class MyCLass{          private int x;          File file;         MyClass() throws MyException{         x = 10;         try{         file = new File(“c:\myFile.txt”);         }         catch(Exception e)         {          throw new MyException();         }         /         /       }     }

When you use this class, insert the code of the constructor in a try-catch block and catch the exception:

    try{        MyClass mc = new MyClass();       }    catch(MyException e)      {       System.out.println(“Could not create an object of the classMyClass”);      }
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