Exception Handling
 
The finally Clause
 
Java introduces a new concept in exception handling: the finally clause. The finally clause sets apart a block of code that is always executed.
 
Example of a finally clause:
 
import java.io.* ;
import java.lang.Exception ;
public class MultiThrowFin
{
public static void main( String[] args )
{
try
{
alpha() ;
}
catch( Exception e )}
{
System.out.println( "Caught exception " ) ;
}
finally()
{
System.out.println( "Finally. " ) ;
}
}
}
 
In normal execution (that is, when no exceptions are thrown), the finally block is executed immediately after the try block.
When an exception is thrown, the finally block is executed before control passes to the caller.
If alpha() throws an exception, it is caught in the catch block and then the finally block is executed.
If alpha() does not throw an exception, the finally block is executed after the try block. If any code in a try block is executed, the finally block is executed as well.