使循环结果显示在一个数组到一个数组中。Java中的toString
我编写了一个代码来提取数组的中间值,但我不知道如何通过Arrays.toString()
正确地查看第二个数组
目前情况如下:
[1,2,3,4,5,6]
[2,3,4,5,6,7]
[3,4,5,6,7,8]
[4,5,6,7,8,9]
3 4 5 6
4 5 6 7
无论如何
[1,2,3,4,5,6]
[2,3,4,5,6,7]
[3,4,5,6,7,8]
[4,5,6,7,8,9]
[3,4,5,6]
[4,5,6,7]
谢谢你的帮助
import java.util.Arrays;
class array2d {
public static void main(String args[]){
int arr[][] = {{1,2,3,4,5,6},
{2,3,4,5,6,7},
{3,4,5,6,7,8},
{4,5,6,7,8,9}};
for (int[] r:arr) {
System.out.println(Arrays.toString(r));
}
for(int i=1; i < 6; i++){
for(int j=1; j < 5; j++){
if (i == 1
|| i == 2
|| j == 0) {
System.out.print(arr[i][j]+" ");
} else {
System.out.print(" ");
}
}
System.out.println();
}
}
}
# 1 楼答案