Java 清除數組相同元素

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定義一個函數清除該數組的重複元素，返回一個不能浪費長度的數組.
代碼如下：

import java.util.*;public class demo1 {    public static void main(String[] args) {                int[] arr = {11, 2, 4, 2, 10, 11};        arr = clearRepeat(arr);        System.out.println("清除重複元素的數組：" + Arrays.toString(arr));            }    public static int[] clearRepeat(int[] arr) {        int count = 0;// 記錄重複元素個數        for (int i = 0; i < arr.length - 1; i++) {            for (int j = i + 1; j < arr.length; j++) {                if (arr[i] == arr[j]) {                    count++;                    break;                }            }        }        int newLength = arr.length - count;        int[] newArr = new int[newLength];        int index = 0;        for (int i = 0; i < arr.length; i++) {            int temp = arr[i];            boolean flag = false;            for (int j = 0; j < newArr.length; j++) {                if (temp == newArr[j]) {                    flag = true;                    break;                }            }            if (flag == false) {                newArr[index++] = temp;            }        }        return newArr;    }}

import java.util.*;public class demo1 {    public static void main(String[] args) {                int[] arr = {11, 2, 4, 2, 10, 11};        arr = clearRepeat(arr);        System.out.println("清除重複元素的數組：" + Arrays.toString(arr));            }    public static int[] clearRepeat(int[] arr) {        int count = 0;// 記錄重複元素個數        for (int i = 0; i < arr.length - 1; i++) {            for (int j = i + 1; j < arr.length; j++) {                if (arr[i] == arr[j]) {                    count++;                    break;                }            }        }        int newLength = arr.length - count;        int[] newArr = new int[newLength];        int index = 0;        for (int i = 0; i < arr.length; i++) {            int temp = arr[i];            boolean flag = false;            for (int j = 0; j < newArr.length; j++) {                if (temp == newArr[j]) {                    flag = true;                    break;                }            }            if (flag == false) {                newArr[index++] = temp;            }        }        return newArr;    }}

 

Java 清除數組相同元素