Java删除重复元素 Java添加两个矩阵。 Java程序减去两个矩阵 Java删除重复元素 import java.util.Arrays; public class Tester { public static int[] removeDuplicateElements(int arr[]){ int n = arr.length; int[] temp = new int[n]; int j = 0; for (int i=0; i<n-1; i++){ if (arr[i] != arr[i+1]){ temp[j++] = arr[i]; } } temp[j++] = arr[n-1]; return temp; } public static void main (String[] args) { int arr[] = {10,70,30,90,20,20,30,40,70,50}; //sort the array Arrays.sort(arr); int[] result = removeDuplicateElements(arr); //printing array elements for (int i=0; i<result.length; i++) { if(result[i] != 0){ System.out.print(result[i]+" "); } } } } Java添加两个矩阵。 Java程序减去两个矩阵