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Java > Learn Java > What is difference between throw and throws in Java...
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What is difference between throw and throws in Java programming?

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Professional Tutor with 15 years of experience.

throw keyword is used to throw Exception from any method or static block in Java while throws keyword, used in method declaration, denoted which Exception can possible be thrown by this method
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Computer Language Expert

throw is used to send and intentional exception and throws is used when you dont want your function to handle the exception. It is handled by the function which is calling it.
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Freelance Developer, Self Taught Guitarist, Technology and Physics Enthusiast

'throws' is a clause that you give to a class or a method which needs to be handled. 'throw' is a keyword that specifies action to throw the necessary exception.
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IT Professional Trainer with 13 years of experience in IT industry + Academics

By throw keyword you can throw single Exception's object and it is being written in try block or catch ..But throws keyword can throw multiple exceptions and it is being used with method definition Example... void display() throws IOException, ArrayIndexOutOfBoundsException
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Java Tutor

Throw is a keyword which is used to throw an exception explicitly. e.g- throw ThrowableInstance , where ThrowableInstance must be object of Throwable or its subclass. It is used in a method. only one type of Exception can be thrown using "Throw" keyword. Throws is a keyword used in method signature...
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Throw is a keyword which is used to throw an exception explicitly. e.g- throw ThrowableInstance , where ThrowableInstance must be object of Throwable or its subclass. It is used in a method. only one type of Exception can be thrown using "Throw" keyword. Throws is a keyword used in method signature to tell that this method might throw an exception and calling method has to handle that or calling method can also propagate the exception using the throws keyword in its method signature. read less
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Trainer

Throw is used within the method.Throws is used with the method signature.
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Trainer

1. Throws clause in used to declare an exception and thow keyword is used to throw an exception explicitly. 2. If we see syntax wise than throw is followed by an instance variable and throws is followed by exception class names. 3. The keyword throw is used inside method body to invoke an exception...
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1. Throws clause in used to declare an exception and thow keyword is used to throw an exception explicitly. 2. If we see syntax wise than throw is followed by an instance variable and throws is followed by exception class names. 3. The keyword throw is used inside method body to invoke an exception and throws clause is used in method declaration (signature). 4. By using Throw keyword in java you cannot throw more than one exception but using throws you can declare multiple exceptions read less
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Trainer

Throw means throw an exception right away. And throws is a declaration that the method can tgrow an exception of apecified type.
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More than 12 years of experience in IT Industry including Science/Computer teaching

Difference between throw and throws are: throw is used to actually throw the exception, whereas throws is declarative for the method. They are not interchangeable. Throws: this is to be used when you are not using the try catch statement in your code but you know that this particular class is...
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Difference between throw and throws are: throw is used to actually throw the exception, whereas throws is declarative for the method. They are not interchangeable. Throws: this is to be used when you are not using the try catch statement in your code but you know that this particular class is capable of throwing so and so exception(only checked exceptions). In this you do not use try catch block but write using the throw clause at appropriate point in you code and the exception is thrown to caller of the method and is handled by it. 1)throw is used to explicitly throw an exception. And throws is used to declare an exception. 2)checked exception can not be propagated without throws. And checked exception can be propagated with throws. 3)throw is followed by an instance.And throws is followed by class. 4)throw is used within the method.And throws is used with the method signature. 5)You cannot throw multiple exception And You can declare multiple exception e.g. public void method()throws IOException,SQLException. read less
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Software Development Trainer

Throw is used whenever we want to raise an exception. Throws is used at function or class level to indicate that this may raise exception during the course of execution and thus jvm handles it.
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