How to solve the problem of lack of return statement in Java prompt

This article mainly explains "how to solve the problem of Java prompt lack of return statement", the content of the article is simple and clear, easy to learn and understand, now please follow the editor's train of thought slowly in depth, together to study and learn "how to solve the problem of Java prompt lack of return statement"!

First of all, take the following program as an example, you will see that there is an error in the console: a prompt for a missing return statement.

When you find the method test defined in the class, it is found that the software will still prompt an error when return is already defined.

If you define return outside the for loop, you will find that the program no longer reports an error.

The reason is that an array can not only hold specific variable values, but also can not assign any values to the array.

When the array content is empty, the program does not report an error, so you need to define the return return value outside the for loop.

The solutions to the lack of return statements in return in Java are summarized as follows:

Java compilation error: missing return statement

Import java.util.*;import java.io.*;public class tt {public static void main (String [] args) {foo ();} public static String foo () {int iTuno; while (I)