What does returning a value do?

I think a really simple answer might be useful here: return makes the value (a variable, often) available for use by the caller (for example, to be stored by a function that the function using return is within). Without return , your value or variable wouldn’t be available for the caller to store/re-use.

What does return 1 means in Java?

And return -1 means nothing in java, you are just returning a int value, thats it. The only meaningful explanation for returning -1 seems to be, that the code calling your function expects a return type of int, converted to int from passed String.

What is a return result?

“Return of results” usually refers to the return of study data of personal or community interest to participants. When the term “return of results” is used, it usually does not refer to the return of results of research (such as profit generated) other than an explanation of what the research showed.

What is return in coding?

In programming, return is a statement that instructs a program to leave the subroutine and go back to the return address. The return address is located where the subroutine was called. In the example JavaScript below, the function returns to the code that called it if the number sent is less than one.

Why do we use return 0?

return 0 in the main function means that the program executed successfully. return 1 in the main function means that the program does not execute successfully and there is some error. return 0 means that the user-defined function is returning false.

Why do we write return 0 in main function?

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.

How do you use return in Java?

return is a reserved keyword in Java i.e, we can’t use it as an identifier. It is used to exit from a method, with or without a value. return can be used with methods in two ways: Methods returning a value : For methods that define a return type, return statement must be immediately followed by return value.

What is a natural return type in Java?

Return type in java is used inside of method for the purpose of returning value in program when method complete it’s execution. A java return type may be i nt, float, double, or void data type (void returns nothing). It is reserved keyword in java and determine the ending of method. 3 Critical points of Return types in java.

What is the function of return in Java?

The return statement in Java is used to explicitly return from a method. That is, it causes program control to transfer back to the caller of the method. As such, it is categorized as a jump statement. A brief look at return is presented here. A method can return a value or reference type or does not return a value.

What is the return method in Java?

In Java, method return type is the value returned before a method completes its execution and exits. Let’s see some of the most critical points to keep in mind about returning a value from a method.