Method Declaration in Java

method signature :

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returnType methodName(Parameters){ //do the stuff }

example :

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int sum(int n){ // do the stuff }

type of method:

1. instance method
2. noninstance method
3. abstract method 
based on access--
1. accessor method(getter)
2. mutator method(setter)
In summary :

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//method name = sum //method signature = sum(int n) //method interface = int sum(int n) int sum(int n){ //..................... }