find the output...

[outofmymind]

Hi,

I'd just like to ask if anyone would be able to help me find the out put of this peice of code...i took it from a past exam paper,,,,,and i was wondering wat the output maybe...

public class UsingExceptions {
   // execute application
   public static void main( String args[] )
   {  // call method1 
      try {
         method1();
      }
      // catch Exceptions thrown from method1
      catch ( Exception exception ) {
      System.err.println( exception.getMessage() + "\n" );
         exception.printStackTrace();
      }
   }
   // call method2; throw exceptions back to main
   public static void method1() throws Exception
   {
      method2();
   }
   // call method3; throw exceptions back to method1
   public static void method2() throws Exception
   {
      method3();
   }
   // throw Exception back to method2
   public static void method3() throws Exception
   {
      throw new Exception( "Exception thrown in method3" );
   }
}  // end class Using Exceptions

thanks

[r035198x]

Hi,

I'd just like to ask if anyone would be able to help me find the out put of this peice of code...i took it from a past exam paper,,,,,and i was wondering wat the output maybe...

public class UsingExceptions {
// execute application
public static void main( String args[] )
{ // call method1 
try {
method1();
}
// catch Exceptions thrown from method1
catch ( Exception exception ) {
System.err.println( exception.getMessage() + "\n" );
exception.printStackTrace();
}
}
// call method2; throw exceptions back to main
public static void method1() throws Exception
{
method2();
}
// call method3; throw exceptions back to method1
public static void method2() throws Exception
{
method3();
}
// throw Exception back to method2
public static void method3() throws Exception
{
throw new Exception( "Exception thrown in method3" );
}
} // end class Using Exceptions

thanks

Suppose you have a go first and then others can make suggestions.

[outofmymind]

ok...............i compiled it and i got this:


Exception thrown in method3

java.lang.Exception: Exception thrown in method3
at UsingExceptions.method3(UsingExceptions.java:27)
at UsingExceptions.method2(UsingExceptions.java:22)
at UsingExceptions.method1(UsingExceptions.java:17)
at UsingExceptions.main(UsingExceptions.java:6)

so i just want to know what exactly is the exception.......im not good at readiing them. And im suspecting that if i got this que in my exam i'd only have to say that the output is: Exception thrown in method3
wont I ??

thanks

[r035198x]

ok...............i compiled it and i got this:


Exception thrown in method3

java.lang.Exception: Exception thrown in method3
at UsingExceptions.method3(UsingExceptions.java:27)
at UsingExceptions.method2(UsingExceptions.java:22)
at UsingExceptions.method1(UsingExceptions.java:17)
at UsingExceptions.main(UsingExceptions.java:6)

so i just want to know what exactly is the exception.......im not good at readiing them. And im suspecting that if i got this que in my exam i'd only have to say that the output is: Exception thrown in method3
wont I ??

thanks

When an exception is thrown, e.printStackTrace() is called which traces the paths that led to the exception.
Your solution might or might not be correct depending on whether the stackTrace is being considered part of the program's output or not.