java - Having an issue with method function -

so basic overall function of code take in the array , sort in ascending order. no errors within code believe wrong. have made test cases , have failed , have feeling in recursivesort method doing wrong. have done multiple debugging walk through , cant find problem?

public class recursivesorter {      private int[] sortedarray;     private int[] array;      public recursivesorter() {         array = new int[1];     }      public recursivesorter(int[] a) {         array = a;     }      public void setarray(int[] a) {         array = a;     }      public int[] getsortedarray() {         return sortedarray;     }      public int[] getoriginalarray() {         return array;     }      public int[] sort() {         sortedarray = array;         recursivesort(sortedarray.length - 1);          return sortedarray;     }      public int[] recursivesort(int endindex) {         if (endindex >= 0) {             int m = getmaxindex(endindex, sortedarray);             swap(m, endindex, sortedarray);             recursivesort(endindex-1);         }         return sortedarray;     }      public int getmaxindex(int endindex, int[] a) {         int max = a[0];         int maxindex = 0;         (int = 1; < endindex; i++) {             if (a[i] > max) {                   max = a[i];                 maxindex = i;             }         }         return maxindex;     }      public void swap(int src, int dest, int[] a) {         int temp = a[dest];         a[dest] = src;         a[src] = temp;     }      public string tostring() {         return "original: " + prettyprint(getoriginalarray()) + "\n" +                "sorted:   " + prettyprint(getsortedarray());     }      private string prettyprint(int[] a) {         string s = "";         (int : a)             s += + " ";         return s;     }      public static void main(string[] args) {         // automate running, not testing         int[] array = {5, 67, 12, 20};         recursivesorter s = new recursivesorter(array);         s.sort();         system.out.println(s); // uses sorter.tostring     } } 

swap method has error:

a[dest] = src; 

should be:

a[dest] = a[src]; 

also line not copy array, have array , sortedarray referencing same array object.

sortedarray = array; 

replace with:

sortedarray = arrays.copyof(array, array.length); 

also in method getmaxindex missing equals sign:

for (int = 1; < endindex; i++) { 

should be:

for (int = 1; <= endindex; i++) {