Question

java怎么遍历二维数组

Answer 1

public static void main(String[] args) {
int arr[][] = new int[][] { { 1 }, { 1, 2 }, { 1, 2, 3 } };
for (int i = 0; i < arr.length; i++) {
int[] arr2 = arr[i];
for (int c = 0; c < arr2.length; c++) {
System.out.print(arr2[c]);
}

System.out.println();

}

}

Answer 2

int[][] in = { { 1, 2 }, { 4, 5 }, { 7, 8 } };
for (int j = 0; j < in.length; j++) {
for (int i = 0; i < in[1].length; i++) {
System.out.print(in[j][i]);

Answer 3

写俩for循环遍历
如：
int [][]a=new int[8][8];
for (int i=0;i<8;i++){
for(int j=0;j<8;j++){
a[i][j]=i+j;
System.out.println(a[i][j]);
}
}