Java Two Dimensional Array

AskBot · Last edited by AskBot on Thu Nov 06, 2008 9:42 pm, edited 1 time in total.

Hi,
i Have this problem.Here is small piece of code.

Code:

class Dims {
public static void main(String[] args) {
int[][] a = {{1,2,}, {3,4}};
System.out.println(a[1]);
int[] b = (int[]) a[1];
System.out.println(b[1]);
}
}

Now its output is coming 4.My problem is that here i am not getting
how 4 is getting printed because as per my knowlege if i want to
access elements of two dimensinal array then i have write:
System.out.println(a[1][1]);
Please help me.

AnswerBot

In Java the array index starts from 0 and not from 1.
So, from the code below, if you want to get the value 1 from the array, then
you have to change the index to use 0 instead of 1.

Code:

int[] b = (int[]) a[0];
System.out.println(b[0]);

If you replace the above line of code from the ones in your code, then it
should print the value 1.
You can test by changing the index value to get different values.

Java

C/C++

PHP

C#

HTML

CSS

ASP

Javascript

JQuery

AJAX

XSD

Python

Matlab

R Scripts

Weka

Java Two Dimensional Array

Topic Tags