CS计算机代考程序代写 Java junit /**

/**
* The class Demo has two public static methods, sum and swap. These
* are used to illustrates how JUnit can be used to test Java
* programs. In particular, JUnit is used for the automated grading
* of your laboratories.
*
* @author Marcel Turcotte (marcel. )
* @version Sun Jan 12 10:59:38 2020
*/

public class Demo {

/**
* The method returns the sum of the two integer values given as
* arguments.
*
* @param a the first argument
* @param b the second argument
* @return the sum of a and b
*/

public static int sum(int a, int b) {
return a+b;
}

/**
* The method is meant the content of the first two cells of an
* array. However, this behaviour has not been implemented yet,
* which will cause an error when running the JUnit tests.
*
* @param xs the reference of an array of integer values
*/

public static void swap(int[] xs) {

;

}

}