The creation and use of Java learning--arrayutil

 Public classArrayutil {//to find the maximum value of an array     Public intGetmax (int[] arr) {        intmax = Arr[0];  for(inti = 1; i < arr.length; i++) {            if(Max <Arr[i]) {Max=Arr[i]; }        }        returnMax; }    //to find the minimum value of an array     Public intGetmin (int[] arr) {        intMin = arr[0];  for(inti = 1; i < arr.length; i++) {            if(Min >Arr[i]) {min=Arr[i]; }        }        returnmin; }    //iterating over array elements     Public voidPrintArray (int[] arr) {System.out.print ("[");  for(inti = 0; i < arr.length; i++) {System.out.print (Arr[i]+ "\ T"); } System.out.println ("]"); }    //find the average of an array     Public intAvgint[] arr) {        intsum =getsum (arr); returnSum/arr.length; }    //find the sum of the arrays     Public intGetsum (int[] arr) {        intsum = 0;  for(inti = 0; i < arr.length; i++) {sum+=Arr[i]; }        returnsum; }    //inverse of an array     Public int[] Reverse (int[] arr) {         for(intx = 0, y = arr.length-1; x < y; x + +, y--) {            inttemp =Arr[x]; ARR[X]=Arr[y]; Arr[y]=temp; }        returnarr; }    //implementing copying of arrays     Public int[] Copy (int[] arr) {        //int[] arr1 = arr; //return arr1;        int[] arr1 =New int[Arr.length];  for(inti = 0; i < arr.length; i++) {Arr1[i]=Arr[i]; }        returnarr1; }    //sorting an array     Public voidSortint[] arr, String desc) {        if(desc = = "ASC") {//ascend: From small to large             for(inti = 0; i < arr.length-1; i++) {                 for(intj = 0; J < arr.length-1-I; J + +) {                    if(Arr[j] > arr[j + 1]) {Swap (Arr,j,j+1); //Swap (arr[j],arr[j + 1]);                    }                }            }        } Else if(desc = = "desc") {//from big to small             for(inti = 0; i < arr.length-1; i++) {                 for(intj = 0; J < arr.length-1-I; J + +) {                    if(Arr[j] < Arr[j + 1]) {Swap (Arr,j,j+1); //Swap (arr[j],arr[j + 1]);                    }                }            }        } Else{System.out.println ("You entered the wrong sort!" "); }    }    //swaps an element at a specified position in an array: swaps two elements indexed as I and J in the ARR array     Public voidSwapint[] arr,intIintj) {        inttemp =Arr[i]; Arr[i]=Arr[j]; ARR[J]=temp; }//Public void Swap (int i,int j) {//int temp = i;//i = j;//j = temp;//    }}

The creation and use of Java learning--arrayutil