When a bash function ends its return value is its status: zero for success, non-zero for failure. To return values, you can set a global variable with the result, or use command substitution, or you ...

Function<Integer, String> functionClass = new FunctionClass(); System.out.println(functionClass.apply(2)); When you run the above code, the output would be four. Java Function interface example.

M4N asks:. Is there a reason why functions in most(?) programming languages are designed to support any number of input parameters but only one return value?

Java’s main function is void, which means it does not return any value when it completes. main – When the JVM starts a standalone application, the main method is the function that gets invoked. String ...

When a VBA solution falls short of your needs, there's probably a Windows API function that can handle the job. Susan Harkins lists 10 handy APIs and explains how you can put them to work.