【java学习笔记】第六章-数组2

数组练习

import java.util.Scanner;
public class one {
    public static void main(String[] args) {
        Scanner myScanner = new Scanner(System.in);
        int[] arr = {1, 2, 4, 5};
        System.out.print("输入要插入的数!");
        int add = myScanner.nextInt();
        int index = arr.length;
        for (int i = 0; i < arr.length; i++){
            if (add <= arr[i]){
                index = i;
                break;
            }
        }
        int[] arrNew = new int[arr.length + 1];
        for (int i = 0, j = 0; i < arrNew.length; i++){
            if ( i != index){
                arrNew[i] = arr[j];
                j++;
            }else {
                arrNew[i] = add;
            }
        }
        arr = arrNew;

        for (int i = 0; i < arr.length; i++){
            System.out.print(arr[i] + "\t");
        }
    }
}