java二维数组定义

这里开始

int [][] array={{1,2,3,4},                {2,3,4,5,6},                {7,3,4,5,6}};System.out.println(array.length);System.out.println(array[0].length);System.out.println(array[1].length);System.out.println(array[2].length);System.out.println(array[0][4]);

输出

3455Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 4    at com.hui.study.Find.main(Find.java:19)