Features of the ProcessAPI Java9

The primary goal of the developers is, to make it easier for you to manage processes on your operating system. They start with giving you the ability to enumerate the system processes via the updated API (no hacky solutions anymore). That means, you can get different properties for each process, e.g. the PID, the process name, the user who started it, the path of the process, resource usage, etc. It is also planned, to make it easier to deal with process trees, especially destructing entire process trees and managing processes with over 100 sub-processes. To do so, it is planned to multiplex their output streams into one output stream, so you do no longer have one thread per monitored process listening for its output stream

How would it look like

We have two examples for you. In the first example, one tries to get the process-id of the current process. In the second example, one tries to get a list of all processes.
So let’s see, how retrieving the process-ID of the current process looks like, before the ProcessAPI-Update.
private static int getProcessOwnID() {
    // pName is equal to PID@COMPUTER_NAME
    String pName = ManagementFactory.getRuntimeMXBean().getName();
    return Integer.parseInt(pName.split("@")[0]);
}

How to use JRebel (Java Rebel) with Eclipse for a Java Web Application

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Eclipse shortcuts for java developers.

1) Ctrl + Shift + T for finding class even from jar

This keyboard shortcut in Eclipse is my most used and favorite shortcut. While working with a high-speed trading system which has a complex code, I often need to find classes with the just blink of the eye and this eclipse keyboard shortcut is just made for that. No matter whether you have class in your application or inside any JAR, this shortcut will find it.

2)      Ctrl + Shift + R for finding any resource (file) including config xml files

This is similar to above Eclipse shortcut with only difference that it can find out not only Java files but any files including XML, configs, and many others, but this eclipse shortcut only finds files from your workspace and doesn’t dig at jar level.

3)      Ctrl + 1 for quick fix

This is another beautiful Eclipse shortcut which can fix up any error for you in Eclipse. Whether it’s missing declaration, missing semi-colon or any import related error this eclipse shortcut will help you to quickly sort that out.

4)      Ctrl + Shift + o for organize imports

Another Eclipse keyboard shortcut for fixing missing imports. Particularly helpful if you copy some code from other file and what to import all dependencies.

Eclipse Shortcut for Quick Navigation
In this section, we will see some eclipse keyboard shortcut which helps to quickly navigate within the file and between file while reading and writing code in Eclipse

7) Ctrl + o for quick outline going quickly to method
9) Alt + right and Alt + left for going back and forth while editing.
12) Alt + Shift + W for show in package explorer
13) Ctrl + Shift + Up and down for navigating from member to member (variables and methods)
15) Ctrl + k and Ctrl + Shift +K for find next/previous
24) Go to a type declaration: F3, This Eclipse shortcut is very useful to see function definition very quickly

Eclipse Shortcut for Editing Code
These Eclipse shortcuts are very helpful for editing code in Eclipse.

5) Ctrl + / for commenting, uncommenting lines and blocks, see here for live example.
6) Ctrl + Shift + / for commenting, uncommenting lines with block comment, see here for example.
8) Selecting class and pressing F4 to see its Type hierarchy
10) Ctrl + F4 or Ctrl + w for closing current file
11) Ctrl+Shirt+W for closing all files.
14) Ctrl + l go to line
16) Select text and press Ctrl + Shift + F for formatting.
17) Ctrl + F for find, find/replace
18) Ctrl + D to delete a line
19) Ctrl + Q for going to last edited place

Miscellaneous Eclipse Shortcuts
These are different Eclipse keyboard shortcuts which doesn’t fit on any category but quite helpful and make life very easy while working in Eclipse.

20) Ctrl + T for toggling between supertype and subtype
21) Go to other open editors: Ctrl + E.
22) Move to one problem (i.e.: error, warning) to the next (or previous) in a file: Ctrl +. For next, and Ctrl +, for the previous problem
23) Hop back and forth through the files you have visited: Alt + ← and Alt + →, respectively.
25) CTRL+Shift+G, which searches the workspace for references to the selected method or variable
26) Ctrl+Shift+L to view listing for all Eclipse keyboard shortcuts.
27) Alt + Shift + j to add Javadoc at any place in java source file.
28) CTRL+SHIFT+P to find closing brace. Place the cursor at the opening brace and use this.
29) Alt+Shift+X, Q to run Ant build file using keyboard shortcuts in Eclipse.
30) Ctrl + Shift +F for Autoformatting

Top 18 Java Tools

Java Tools

You’ll probably know many of the tools on this list of 18 choices, but others may be new to you. And odds are you haven’t tried them all yet

Gradle (http://www.gradle.org): Build tool. Automates the building, testing, publishing, deployment, and more of software as well as generating static websites or documentation.

Eclipse (http://www.eclipse.org): Opensource integrated development environment (IDE). If you could have just one tool for Java development, Eclipse would be a good choice.

IntelliJ (http://www.jetbrains.com/idea/): IDE made by JetBrains, available in an

Apache 2licensed community edition and a commercial edition. Intel iJ provides similar features to Eclipse, with a smooth, developer friendly experience.

YourKit (http://www.yourkit.com): Java profiler. Combines powerful analysis

capabilities, ondemand profiling during both development and production, free embedding into production, and seamless IDE and application server integration.

Eclipse Versions

The various versions are:

• Eclipse 1.0 (November 7, 2001): based on an earlier Java IDE called VisualAge from IBM.
• Eclipse 2.0 (June 28, 2002)
• Eclipse 2.1 (March 28, 2003)
• Eclipse 3.0 (June 25, 2004)

How to do static import in Eclipse - Java

Do you know what is shortcut of doing static import in Eclipse? Well I didn't know before, but today I come to know that shortcut Ctrl+Shift+M (Source > Add Import) can not only be used to add missing imports but It can also help with static import in Java program.  Suppose you are using lots of static variable from a utility class e.g. TimeUnit by referring them with class name, just like we refer static variable. In Eclipse IDE, you can select the whole reference variable and press Ctrl+Shift+M and it will automatically import that static element using static import in Java.