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How to append elements to a one-dimensional array in java

王林
Release: 2019-11-28 14:47:32
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How to append elements to a one-dimensional array in java

Implementation idea:

First create a temporary array that is larger than the length of the original array, and then copy the elements in the original array to the temporary array one by one. Then add the new element that needs to be added to the last index position, and finally assign the temporary array address pointer reference to the original array.

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Examples are as follows:

public class ArrayAppend { public static void main(String[] args) { //一维数组的定义和初始化 //静态定义一维数组 int[] scores={90,70,50,80,60,85}; //向一维数组scores末尾中添加一个学生的成绩 75. /* 思路: 1. 先创建一个比原来scores数组长度大1的临时数组 tempArray 2. 将scores数组的每一个值复制到 tempArray 3. 然后将 成绩为 75 赋值到 tempArray的新增最后的索引位置 4. 最后将tempArray地址指针引用赋值给 scores; */ int[] tempArray=new int[scores.length+1]; for(int i=0;i
        
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