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  Launch Java process programmatically in Java

In some cases while working on some automation testcase, developers would like to launch Java process programmatically so that the tests can be ran without manual intervention. Java provides such methods to achieve this. ProcessBuilder can be used to build a Java process which can be launched when everything is ready. Basically it can take a list of parameters which are similar to the command line options/arguments.  For example, if you want to launch a Java process, you can do followi...

   JAVA,PROCESSBUILDER,COMMAND LINE     2016-04-27 04:03:30

  World of Father of Ruby

"I am Yukihiro Matsumoto, I believe keyboard can change the world" is a video about Father of Ruby -- Yukihiro Matsumoto. This video introduces us a father, a husband rather than a programmer. Yukihiro Matsumoto shared his understanding about programming in this video. Computer is not quite smart, it cannot understand human languages, so if we want computers to complete jobs we assign to them, then we need something both human beings and computers can understand. That's why we have program...

   Yukihiro Matsumoto     2013-08-30 22:45:26

  String intern in Java

In Java, == is used to compare whether two objects have the same memory location, equals() is usually used to compare whether two objects have the same time and the same state.  When comparing two strings, normally we just want to know whether they have same content, so we can choose equals(). But since String comparison is so frequently needed, Java has worked on the String class to make == workable when comparing two String literals. The String class maintains a pool of emp...

   JAVA,STRING     2016-04-10 03:35:25

  Modal dialog in Java example code

In Java, we can create modal dialog so that the main JFrame cannot be operated on until the modal dialog is closed. To achieve this, we need to use one class in Java--JDialog. This class can be used to create an modal dialog.Example code : import javax.swing.JDialog; import javax.swing.JLabel; import javax.swing.JPanel; public class Dialog extends JDialog{ public Dialog(){ super(); JPanel panel=new JPanel(); panel.add(new JLabel("Hello dialog")); this.getCont...

   Java,Modal,JFrame,JDialog,Demo,Code     2011-08-18 09:50:27

  What Makes A Great Programmer?

I remember it like it was yesterday. It was the year 2000, Dr. Pargas was standing at the front of our data structures class talking about some data structure-y topic while an SSH session was projected on the wall in front of us. Someone asked a question, and he said something along the lines of "Well, if you want to be a real computer scientist you need to start using vi". I think he was smiling as he said it, and in hindsight his statement wasn't even slightly true, but being young and ...

   Programmer,Great programmer,Character     2012-02-15 06:14:04

  C++ and Java over Python in Google products

In Google, most of the products are written in C++ and Java. They usually don't choose Python to write their product stack. What's behind the decision to choose one language over the other in Google? Let's get to read some opinions from Robert Love, a Google software engineer. Love said he couldn't imagine writing let alone maintaining a large software stack in Python. They use C++, Go, and Java for production software systems, with Python employed for scripting, testing, and tooling.There are a...

   Java,Python,Google     2014-07-20 04:39:09

  Moving from Java to C++: An Interview with Rogers Cadenhead

In this interview, co-author of Sams Teach Yourself C++ in 24 Hours, 5th Edition Rogers Cadenhead discusses moving from Java to C++, what brought him to C++, and the best tactics for learning C++.Danny Kalev: For how long were you a Java programmer? Can you tell us a bit about the nature of the projects in which you took part at that time?Rogers Cadenhead: I've been a Java programmer since the language was launched by Sun Microsystems in 1995. I was doing website develop...

   Java,C++,Transfer,Transform,New challeng     2011-09-03 11:01:26

  What Makes A Great Programmer?

I remember it like it was yesterday. It was the year 2000, Dr. Pargas was standing at the front of our data structures class talking about some data structure-y topic while an SSH session was projected on the wall in front of us. Someone asked a question, and he said something along the lines of "Well, if you want to be a real computer scientist you need to start using vi". I think he was smiling as he said it, and in hindsight his statement wasn't even slightly true, but being young and ...

   Tips.Programmer,Great,Great programmer     2011-06-08 03:08:04

  static nested and non-static nested class in Java

Nested classes are divided into two categories: static and non-static(inner). Nested classes that are declared static are simply called static nested classes. Non-static nested classes are called inner classes. Static class can be defined as : class OuterClass{ static class StaticNestedClass{ //OTHER STUFF } } Static nested classes are accessed using the enclosing class name: OuterClass.StaticNestedClass For example, to create an object for the static nested class, use this synta...

   Java,static nested class,inner class     2014-04-23 07:11:44

  IDEs for Java programmers

IDEs are great helpers to programmers. They can help programmers write less error-prone programs with less time. They have become an inevitable part of many programmers. As a Java developer, you may be familiar with Eclipse already. But do you know other IDEs for Java programmers? We will give an overview of different IDEs for Java programmers. These IDEs are Eclipse, Intellij IDEA, NetBean and BlueJ. Eclipse Eclipse is the most widely used IDE for Java programmers. It's an open source IDE whic...

   Java IDE,BlueJ,NetBeans,Eclipse     2014-08-21 06:15:54