Difference‌ ‌between‌ ‌throw‌ ‌and‌ ‌throws‌

Difference between throw and throws

Exception handling comes up in different types. Throw and Throws are the most significant exception handlers that are used in Java. The throw exception of fabulous potential as it can easily overwrite the stack. It indeed is capable enough to retain the stack information with ease. Not only this, but it comes up with the flexibility to add on as much significant stack information in it as you like.

Throw VS Throws

Throw and Throws vary from each other in enormous aspects. All of these aspects are important to the developer and hence must be known. Let us view some of the most useful ones:


The keyword throw is most often used inside the program function and block codes. It throws the exception explicitly inside these areas. However, throws is such a keyword that defines the method signature. It declares the exception for the code execution. 

Internal Implementation

The implementation of the throw is internal. It is capable of throwing a single exception to the program at one time. The developer can’t throw keywords in multiple exceptions. However, on the other hand, throws are the significant keyword that declares various exceptions. It often leads to throwing or multiple exceptions through the function.


The declaration of the throw and throws is the prominent difference. It helps the developers to comprehend throws and throws in detail. Hence, they can implement it more wisely and rationally. The throw keyword is declared quite effectively within the method. However, the throws keyword does not link to be within the method at all. It works fabulously with the method signature to do the needful.

Syntax: Difference between throw and throws

The instance variable is the valuable one for the throw keyword. The instance variable follows the syntax-wise throw keyword. However, in the case of throws, the scenario is the opposite. In throws, the exception class names follow the syntax-wise throws keyword.

Type of Exception: Difference between throw and throws

The type of execution for the throw keyword is through the propagation of unchecked exceptions. It is not possible to use throw for the propagation of checked exceptions. The throw does not have any interaction or concern with the checked exception. However, on the other hand, it throws keyword work for unchecked and checked exceptions. Hence, developers find it much easier and convenient to use. The throw keyword helps declare all kinds of exceptions. In the case of the checked exception, the peculiar exception class name works well for the throws keyword.

In a Nutshell

The students having difficulty in understanding the throw and throws have multiple queries. One of the most significant queries is that either of these keywords of Java uses together. The throws are the most appropriate and beneficial keyword that helps in the declaration of multiple exceptions. It quite fabulously handles a variety of exceptions simultaneously and does not lead to an error. However, the throw can’t deal with multiple exceptions. Hence, it comes up with better outcomes through the use of a single exception. Both of these use differently and separately. 

Also read: Difference between spring and spring boot


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