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Friday 30 October 2015

Read data from Google Spreadsheet without authentication using Java

Google Spreadsheets provides a way to create, edit, save spreadsheets online.
The Google Sheets API (formerly called the Google Spreadsheets API) lets you develop client applications that read and modify worksheets and data in Google Sheets.
Read More about Sheets API

Let's see how to use this API to read data from Spreadsheet, here i am going to use Spreadsheet version 3.0 , if this link doesn't work then check on GitHub , from here you will get  client library for all Google APIs

Saturday 24 October 2015

Oracle JDeveloper and Oracle ADF 12c ( out (bug fixed and lots of new features introduced)

Time to check new Jdeveloper 12.2.1 , Wait is over Check out new features :)
Download- Oracle JDeveloper 12g (

1. Alta UI is now default skin for all ADF Faces components , previously it was Skyros
Read more about Oracle Alta UI Design Patterns

4. In Data Visualization some change done in Pie Chart and Thematic Map. New component NBox and funnel chart is introduced

Monday 19 October 2015

Get domain information (WHOIS) using Apache Commons Net API- ADF & Java

We can get any domain information using Apache commons net library. It supports various protocols and WHOIS information is one of them

WhoisClient class provides access of domain information
See what docs says -

The WhoisClient class implements the client side of the Internet Whois Protocol defined in RFC 954. To query a host you create a WhoisClient instance, connect to the host, query the host, and finally disconnect from the host. If the whois service you want to query is on a non-standard port, connect to the host at that port.

Download required library or if this link doesn't work then goto API page and download from there

This simple java method will fetch information of domain using Apache library

Wednesday 14 October 2015

Blog Completed 3 awesome years

I am happy to tell you that my (Ashish Awasthi's Blog) blog has completed 3 years today.
On 14-October-2012 i have posted my first blog post on ADF Basics: Show inline Message in Oracle ADF and till now blog has more than 180 posts on ADF, Java, JavaScript, jQuery etc.

I started blogging to help Java & ADF developers, to share what i have learnt and still trying to do same
Initially started this blog with - & after one year changed it to a custom domain

It has 1700+ fan following on facebook -Facebook Page
Now i am trying to put some more interesting stuff to learn, Keep an eye on blog

Taking as a whole it was awesome journey of 3 years :) Thanks for your support , Keep reading Keep Learning :)

Now say Happy B'day to Ashish Awasthi's Blog  :)

Wednesday 7 October 2015

ADF Basics: Reorder ADF table column using DisplayIndex property

This post is about a very simple use case that is reordering of af:table column at run time. 
Ordering of columns in af:table is controlled by DisplayIndex property of af:column
Check what docs says-

Default Value: -1

The display order index of the column. Columns can be re-arranged and they are displayed in the table based on the displayIndex. Columns are sorted based on the displayIndex property, columns without displayIndex are displayed at the end, in the order in which they appear. The displayIndex attribute is honored only for top level columns, since it is not possible to rearrange a child column outside of the parent column.
Not supported on the following renderkits: org.apache.myfaces.trinidad.core

We can set DisplayIndex property for all columns in a sequence (1,2,3 etc) that we want to see on page

Monday 5 October 2015

Allow user input in Jdeveloper for Java applications, Using Java Scanner Class to take input from console

Sometimes we have to take input from Keyboard when we use Scanner or BufferedReader class.
and to take input from Jdeveloper we have to change a setting to allow user input in Jdeveloper.

Let's take an example of java.util.Scanner class-

package client;

import java.util.Scanner;

public class UserInput {
    public UserInput() {

    public static void main(String[] args) {
        System.out.println("Please Enter your Name-");
        Scanner sc = new Scanner(;
        String name =;
        System.out.println("Your Name is " + name);