How to download and use Commons.Lang in java project?

Question

I'm trying to reverse an integer array in java using Arrays.toString(reverse(arrayname) method but not able to correctly use its header file. image is here

import java.util.Scanner;
import java.util.Arrays;
import org.apache.commons.lang3;

public class ReverseDisplay 
{

    public static void main(String[] args) 
{
    int arr[]=new int[5];
    Scanner input=new Scanner(System.in);
    for(int i=0;i<5;i++)
    {
        System.out.println("Enter Element # "+(i+1));
        arr[i]=input.nextInt();
    }
        System.out.println(Arrays.toString(reverse(arr)));

    }

}

You mean Apache Commons Lang? https://commons.apache.org/proper/commons-lang/ — kutschkem, Mar 13 '18 at 12:36
instead of image of code (just a few lines?!) paste it as TEXT - much easier to read... — user85421, Mar 13 '18 at 12:37

score 2 · Accepted Answer · answered Mar 13 '18 at 12:36

2

You need to put commons-lang jar in your classpath (either in IDE or classpath param in commandline or add dependency if you use maven/gradle)

if you want to do it manually you need to download jar first: https://commons.apache.org/proper/commons-lang/download_lang.cgi

Java can import only classes that are on the classpath.

answered Mar 13 '18 at 12:36

Maciej

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how do i put common-lang jar class path in net-beans. – Ghulam Mustafa Mar 13 '18 at 12:48
I don't use netbeans, but when you download from above link there will be jar file inside, and you have to add it in netbeans to classpath: https://stackoverflow.com/questions/4879903/how-to-add-a-jar-in-netbeans – Maciej Mar 13 '18 at 12:58

How to download and use Commons.Lang in java project?

1 Answers1