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What is signature in java?

Updated: 9/30/2022
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Arunsgh

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15y ago

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Two of the components of a method declaration comprise the method signature-the method's name and the parameter types.The signature of a method is the combination of the method's name along with the number and types of the parameters (and their order). More generally, method declarations have six components, in order: 1. Modifiers-such as public, private, and others you will learn about later. 2. The return type-the data type of the value returned by the method, or void if the method does not return a value. 3. The method name-the rules for field names apply to method names as well, but the convention is a little different. 4. The parameter list in parenthesis-a comma-delimited list of input parameters, preceded by their data types, enclosed by parentheses, (). If there are no parameters, you must use empty parentheses. 5. An exception list-to be discussed later. 6. The method body, enclosed between braces-the method's code, including the declaration of local variables, goes here.

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Any function or method in Java that is coded by the programmer is called a user defined method in Java. The JAVA API (Application Programming Interface) has a set of predefined classes & methods that are for our usage. Whatever methods we create apart from these are termed as user defined methods. In java we not use the term functions. We call them "Methods"


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