Java Tutorials
Difference Between Throw and Throws in Java (With Examples)
Table of Contents
- Introduction
- What Are Throw and Throws in Java?
- Difference Between Throw and Throws in Java
- Examples of Throw vs Throws in Java
- Throw vs Throws in Java
Java Throw vs Throws FAQs
The throw keyword is used in Java to manually throw an exception within a program. It allows you to create and throw custom exceptions or predefined exceptions to indicate exceptional conditions in your code.
The throws keyword is used in Java to declare that a method may throw one or more specific types of exceptions. It is included in the method signature to indicate that the method could potentially generate certain exceptions during its execution.
No, the throw keyword is used only within methods to explicitly throw an exception. It cannot be used outside of method bodies.
The throw keyword is used within a method body to manually throw an exception, while the throws keyword is used in a method signature to declare which exceptions the method might throw. They serve different purposes in exception handling.
No, using the throw keyword is not mandatory when an exception occurs. Exceptions can be thrown automatically by the Java runtime or explicitly using the throw keyword, depending on the specific scenario.
Yes, if a method declares that it can throw certain exceptions using the throws keyword, any code thdeclare at calls that method must either catch those exceptions using a try-catch block or them in its own throws clause.
Yes, a method can have multiple throws clauses in its signature, indicating that it may throw different types of exceptions. For example: public void myMethod() throws IOException, IllegalArgumentException.
Use the throw keyword when you want to explicitly create and throw an exception within a method. Use the throws keyword to declare which exceptions a method might propagate to its caller.
Yes, you can use the throw keyword to create and throw your own custom exceptions by instantiating classes that extend the Exception or RuntimeException classes.
Yes, exceptions thrown using the throw keyword can be caught and handled using try-catch blocks, just like exceptions thrown by the Java runtime.
