What Does Return This Mean In Java?

What return means?

return; means exit suddenly from this function returning void.

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return; won’t return anything, which matches the declared void return type of the function create .

It will return to the caller of the function it appears in (not shown in your example), just like return EXPRESSION; will..

What is the purpose of return 0?

The main function is generally supposed to return a value and after it returns something it finishes execution. The return 0 means success and returning a non-zero number means failure. Thus we “return 0” at the end of main function. But you can run the main function without the return 0.It works the same .

Which procedure do not return a value?

A Sub procedure does not return a value to the calling code. You call it explicitly with a stand-alone calling statement. You cannot call it by simply using its name within an expression.

What is the difference between a void method and a value returning method?

A void method is one that simply performs a task and then terminates. A value – returning method not only performs a task but also sends a value back to the code that called it.

Why do we use return in Java?

A return statement causes the program control to transfer back to the caller of a method. Every method in Java is declared with a return type and it is mandatory for all java methods. A return type may be a primitive type like int, float, double, a reference type or void type(returns nothing).

What does void mean in Java?

The void keyword specifies that a method should not have a return value.

Is void a return type?

Void as a Function Return Type Void functions, also called nonvalue-returning functions, are used just like value-returning functions except void return types do not return a value when the function is executed. The void function accomplishes its task and then returns control to the caller.

What is the difference between return 0 and return 1?

in main function return 0 or exit(0) are same but if you write exit(0) in different function then you program will exit from that position. returning different values like return 1 or return -1 means that program is returning error . … But destructors are called if return 0 is used.

What happens if you dont use return 0 in C?

In a C++ program the statement is optional: the compiler automatically adds a return 0; if you don’t explicitely return a value. The return value is the exit code of your program, the shell (or any other application that ran it) can read and use it.

What does return 0 mean?

From the context: return 0 – As mentioned earlier, the function main returns an integer value (int main()), therefore here we are returning 0. … It indicates that our program has been run successfully and we terminate our main function with this return statement.

What is the purpose of the void?

When used as a function return type, the void keyword specifies that the function does not return a value. When used for a function’s parameter list, void specifies that the function takes no parameters.

What is return value in programming?

In programming, return is a statement that instructs a program to leave the subroutine and go back to the return address. … In most programming languages, the return statement is either return or return value, where value is a variable or other information coming back from the subroutine.