Use of the return value method with a parameter in Java

If the method contains both parameters and return values, we are called methods with the return value of the parameter.

For example: The following code, which defines a show method with a parameter name, returns a String result after the method executes

Call a method with a parameter return value:

The result of the operation is: welcome, Adore Class!

Task

Implement function: sort and output test scores, return the number of results

Implementation ideas:

1. Define a method that contains integer array parameters to pass in the score array

2. Use the Arrays.sort () method in the method body to sort the score array, then use the Arrays.tostring () method to convert the array to a string and output, and finally return the number of elements in the array using return.

3. When calling a method, you need to create the object before calling it. When called, the array of scores is passed in, and the return value of the method is obtained, saved in the variable, and the number of results is finally output.

Please complete the Code 9, 20, and line in the editor

Operation Result:

Importjava.util.Arrays; Public classHelloWorld { Public Static voidMain (string[] args) {HelloWorld Hello=NewHelloWorld (); int[] scores={79,52,98,81}; //call the method, pass in the score array, and get the number of scores        intCount=Hello.sort (scores); System.out.println ("A total of" +count+ "score information! "); }        /** Function: Sort and output the test results, return the number of results * Define a method that contains an integer array parameter, passing in an array of scores * Use the arrays class to sort the score array and output the number of elements in the array returned by the method execution*/     Public intSortint[] scores)        {Arrays.sort (scores);                System.out.println (arrays.tostring (scores)); //returns the number of elements in an array        returnscores.length; }}

Use of the return value method with a parameter in Java