Unchecked Exception requires no work from the programmer. The compiler takes care of the issue. For example, nullpointer exception, divide by zero exception, etc. are examples of unchecked exceptions.

What you’ll learn in this Java tutorial. About Java exceptions and their types; The difference between checked and unchecked exceptions; Three ways to throw Java exceptions ...

Some exceptions in Java must be handled in the developer's code. Other exceptions can occur without any exception handling semantics at all. When an exception must be handled with try-and-catch ...

An example is String. This is not a primitive type in Java, but rather a reference type: in this case it “points” to a class that can have multiple values and methods.