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完成第一天任务, create by jack-json #23

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39 changes: 39 additions & 0 deletions src/main/java/MoveZeroes/jackjson/MoveZeroesDemo.java
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Original file line number Diff line number Diff line change
@@ -0,0 +1,39 @@
package MoveZeroes.jackjson;

import java.util.*;

public class MoveZeroesDemo {

public static Integer[] getNewArray(Integer[] array){
//数组转集合操作, 但是有一个缺陷, 返回的是一个Arrays的静态内部类,其中并没有实现add,remove方法
List<Integer> list = Arrays.asList(array);
// 创建一个list
list = new ArrayList<Integer>(list);
// 定义一个标志, 用于记录有几个0存在
int flag = 0;
for(int i = 0; i < list.size(); i++) {
if(0 == list.get(i)){
list.remove(i);
// 防止漏标记, 漏删除
i--;
flag++;
}
}
// 有 0 存在的情况下再做操作
if(flag > 0){
for (int i = 0; i< flag; i++){
list.add(0);
}
}
// 集合转数组 等到记过并返回
array = list.toArray(new Integer[list.size()]);
return array;
}


public static void main(String[] args) {
Integer[] array = {0,1,0,3,12};
Integer[] newArray = getNewArray(array);
System.out.println(Arrays.toString(newArray));
}
}