. Writing tools ArrayTool, an array class provides the following methods, these methods can be invoked directly by the name of the class,
1) the sort (int array []) to achieve an array of array ascending order
2) int the sum (int array []) to achieve an array of array sum
3) int Max (int array []) to find the highest value in array
4) int min (int array []) to find the lowest value of array
2. Write a test class, call the ArrayTool method of array
,85,95,60,55,100,40 [90] sorting, summation, the maximum minimum operation;