Throws Java.lang.exception Returned A Null Value. an illegalargumentexception is thrown in order to indicate that a method has been passed an illegal argument.this exception extends the runtimeexception class. to fix the nullpointerexception in the above example, the string should be checked for null or empty values before it is used any further:
The code is updated with a. Most programs throw and catch objects that derive from the exception class. Java.lang.nullpointerexception when null is thrown public.
java Why does this code throw a ClassCastException? Stack Overflow
Java.lang.nullpointerexception when null is thrown public. throw an exception. various programming books suggest that methods should not return null values (clean code for example). An exception indicates that a problem occurred, but it is not a serious system.