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Java Programming - Exceptions - Discussion

Discussion Forum : Exceptions - Pointing out the correct statements (Q.No. 2)
Exceptions
2.
public class MyProgram 
{
    public static void throwit() 
    {
        throw new RuntimeException();
    }
    public static void main(String args[])
    {
        try 
        {
            System.out.println("Hello world ");
            throwit();
            System.out.println("Done with try block ");
        }
        finally 
        {
            System.out.println("Finally executing ");
        }
    }
}
which answer most closely indicates the behavior of the program?
The program will not compile.
The program will print Hello world, then will print that a RuntimeException has occurred, then will print Done with try block, and then will print Finally executing.
The program will print Hello world, then will print that a RuntimeException has occurred, and then will print Finally executing.
The program will print Hello world, then will print Finally executing, then will print that a RuntimeException has occurred.
Answer: Option
Explanation:

Once the program throws a RuntimeException (in the throwit() method) that is not caught, the finally block will be executed and the program will be terminated. If a method does not handle an exception, the finally block is executed before the exception is propagated.

Discussion:
7 comments Page 1 of 1.
Sasikanta said:   8 years ago
I am getting below error at line 5 i.e " throw new RuntimeException();"

No exception of type RuntimeException can be thrown; an exception type must be a subclass of Throwable.
Sai prasad said:   9 years ago
Hello world

Exception in thread "main" java.lang.RuntimeException.

Finally executing
at javaapplication8.JavaApplication8.throwit(JavaApplication8.java:8)
at javaapplication8.JavaApplication8.main(JavaApplication8.java:16)
Java Result: 1
BUILD SUCCESSFUL (total time: 0 sec)
Archana said:   1 decade ago
Hello world.

Exception in thread "main" java.lang.RuntimeException.

Finally executing:

at MyProgram.throwit(MyProgram.java:5).
at MyProgram.main(MyProgram.java:12).

Java Result: 1.

And after executing second time o/p is :

Hello world.

Finally executing.

Exception in thread "main" java.lang.RuntimeException.

at MyProgram.throwit(MyProgram.java:5).
at MyProgram.main(MyProgram.java:12).

Java Result: 1.

Output is not predictable.
Alis said:   1 decade ago
I don't think it's predictable.

I ran the class a number of times and have seen different order of expressions in standard output.
Saroj das said:   1 decade ago
I think answer is C


Hello world
Exception in thread "main" java.lang.RuntimeException
at MyProgram.throwit(MyProgram.java:6)
at MyProgram.main(MyProgram.java:13)
Finally executing
Sundar said:   1 decade ago
The given answer is correct. I have tested it.

D:\Java>javac Test.java

D:\Java>java Test
Hello world
Finally executing
Exception in thread "main" java.lang.RuntimeException
at Test.throwit(Test.java:5)
at Test.main(Test.java:12)

Hope this will help you. Have a nice day!
Prashanta said:   1 decade ago
I think the answer is C. Finally block will be all time executed whether catch block are belong there or not. but it it will executed at the last time.
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