I need help with the following question

Using the Java language, have the function SimpleSymbols(str) take the str parameter being passed and determine if it is an acceptable sequence by either returning the string true or false. The str parameter will be composed of + and = symbols with several letters between them (ie. ++d+===+c++==a) and for the string to be true each letter must be surrounded by a +symbol. So the string to the left would be false. The string will not be empty and will have at least one letter.

Here is the given code

import java.util.*; import java.io.*;

class Main { public static String SimpleSymbols(String str) { // code goes here /* Note: In Java the return type of a function and the parameter types being passed are defined, so this return call must match the return type of the function. You are free to modify the return type. */ return str; } public static void main (String[] args) { // keep this function call here Scanner s = new Scanner(System.in); System.out.print(SimpleSymbols(s.nextLine())); } }

Please help

Thanks