In java what is the difference between throw and throws

Throw and Throws are keywords in java used in exception handling. In Throws the throw keyword is followed by the exception class. To raise an exception throws keyword followed by the class name and checked exception can be propagated. Throw keyword in java is used to throw an exception explicitly and logically defined by the programmer during the program control moves from one block to another assuming the errors exception are defined and handled accordingly.

ArithmeticException: you can't vote as not Eligible to vote at ThrowExample. The throws keyword is used to declare which exceptions can be thrown from a method, while the throw keyword is used to explicitly throw an exception within a method or block of code.

The throws keyword is used in a method signature and declares which exceptions can be thrown from a method. The throws keyword can be useful for propagating exceptions in the call stack and allows exceptions to not necessarily be handled within the method that declares these exceptions.

On the other hand, the throw keyword is used within a method body, or any block of code, and is used to explicitly throw a single exception. The throw keyword can be useful for throwing exceptions based on certain conditions within a code block and for throwing custom exceptions. The throws keyword in Java is used to declare exceptions that can occur during the execution of a program. For any method that can throw exceptions, it is mandatory to use the throws keyword to list the exceptions that can be thrown.

The throws keyword provides information about the exceptions to the programmer as well as to the caller of the method that throws the exceptions. The throws keyword allows exceptions to be propagated in the call stack.

When a method declares that it throws an exception, it is not required to handle the exception. The caller of a method that throws exceptions is required to handle the exceptions or throw them to its caller and so on so that the flow of the program can be maintained. Only checked exceptions are required to be thrown using the throws keyword. Here is an example of a method that throws an exception, which is handled by the caller of the method:.

As seen in the syntax above, all exceptions that can be thrown by a method should be declared in the method signature using the throws keyword. Previous Page Print Page. Next Page. Dashboard Logout.