public class AraayDemo5 {
public static void main(String[] args) {
//4行2列
/*
1,2 array[0]
2,3 array[1]
3,4 array[2]
4,5 array[3]
*/
int[][] array = {{1,2},{3,4},{3,4},{3,4}};
printArray(array[0]);
System.out.println(array[2][0]);
System.out.println(array[2][1]);
System.out.println(array.length);
System.out.println(array[0].length);
for (int i = 0; i < array.length ;i++) {
for (int j = 0; j <array[i].length ; j++) {
System.out.println(array[i][j]);
}
}
}
//打印数组元素,数组作方法入参,就是可以对数组进行一些操作
public static void printArray(int[] arrays){
for (int i = 0; i < arrays.length ; i++) {
System.out.print(arrays[i]+" ");
}
}
}