What are return statements in java?

Answer 1

you can understand what is the purpose of return in java after this simple example

Basically return use in java to return some values from a method

note: this sample will work on all java versions, i test it on JDK 1.4

enjoy the code.

file name : Class1.java

-----

package mypackage1; //package name

public class Class1 //class name + file name the

{

public String add(int a,int b) //a method in the class; its type is String and it take a and b variables; a and b are int

{

int answer = a+b; //this is some code in the class; maybe some operations; no need to know whats happening in this method

System.out.println("I'm in Class1"); //this is some code in the class; maybe some operations; no need to know whats happening in this method

return " I'm the returned value "+ answer; ////this is what you need to take from the method

}

public static void main(String [] arg)

{

Class1 c1 = new Class1(); //creating c1 object from Class1 Class

System.out.println(c1.add(10,6)); //printing the returned values from the method;

}

}

-----------------

output:

I'am in Class1

I'am the returned value 16

Answer 2

Return statement is commonly used with Method which return value.

Example,

int sum(int a,int b)

{

return (a+b);

}

This method gives sum of two numbers which can be assigned to any int variable.

Answer 3

When declaring a method, when you type in "public (or private) int", the int gives the return type. The return statement gives the value to return.

Answer 4

You declare a method's return type in its method declaration. Within the body of the method, you use the return statement to return the value.