Answer Posted / pavithra

public class ExceptionalClass {
public void method1() throws CheckedException {
// ... some code
throw new CheckedException( "something bad
happened" );
}
public void method2( String arg ) {
if( arg == null ) {
throw new NullPointerException( "arg passed to
method2 is null" );
}
}
public void method3() throws CheckedException {
method1();
}
}

Contrast method1() with method2(). When you
make a call to method2(), you don't have to do so within a
try/catch block. Since you do not have to catch the
exception, the exception is said to be unchecked; it is a
runtime exception. A method that throws a runtime exception
need not declare the exception in its signature.

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