How to install java programming software in windows 7

Clicking the "Run" button with a "Play" icon runs the recently-run program based on the previous configuration. Try clicking on the "down-arrow" besides the "Run" button. Correcting Syntax Errors Eclipse performs incremented compilation, as and when a source "line" is entered. Debugging Programs in Eclipse Able to use a graphics debugger to debug program is crucial in programming.

Step 1: Set an Initial Breakpoint A breakpoint suspends program execution for you to examine the internal states e. Step 4: Breakpoint, Run-To-Line, Resume and Terminate As mentioned, a breakpoint suspends program execution and let you examine the internal states of the program. This feature is particularly useful for writing source code in full panel.

Shorthand Templates sysout, for, You need to reconfigure either your language switching hot-key or Eclipse. Intelli-Sense ctrl-space : You can use ctrl-space to activate the "intelli-sense" or content assist. That is, Eclipse will offer you the choices, while you are typing. Source Formatting ctrl-shift-f : Right-click on the source. Hints for Correcting Syntax Error: If there is a syntax error on a statement, a red mark will show up on the left-margin on that statement.

You could click on the "light bulb" to display the error message, and also select from the available hints for correcting that syntax error. Refactor or Rename alt-shift-r : You can rename a variable, method, class, package or even the project easily in Eclipse. Eclipse can rename all the occurrences of the entity. You can also configure many editor options, such as the number of spaces for tab.

Alternatively, you can right-click on the left-margin, and check "Show Line Numbers". Error Message Hyperlink: Click on an error message will hyperlink to the corresponding source statement.

This sets the default character set used for file encoding, similar to VM's command-line option -Dfile. Mouse Hover-over: In debug mode, you could configure to show the variable's value when the mouse hovers over the variable. I like to set the frequently-used commands to Ctrl-1 to Ctrl, for examples, "Run Java Application" to "Ctrl-1", etc. Don't use Find Ctrl-F , but use the above context-sensitive search. Ctrl-Shift-F: Format the source code.

Ctrl-Shift-O: Organize imports. Alt-Shift-R: Rename. Ctrl-Space: auto-complete. Package Explorer vs. Navigator: We usually use "Package Explorer" in programming, but it will not show you all the folders and files under the project.

On the other hand, "Navigator" is a file manager that shows the exact file structure of the project similar to Windows Explorer. Also provide a "User defined dictionary" with an initially empty text file.

Viewing two files in split screen: Simply click and hold on the title of one file and drag it to the lower side of the screen. Creating "link folder" in project : You do not have to place all the folders under the project base directory, instead, you can use so-called "link folders" to link to folder outside the project base directory. Running Eclipse in "clean" mode: You can run eclipse in so-called " clean " mode, which wipes all the cached data and re-initialize the cache, by running eclipse from command-line with "-clean" argument i.

It is useful if something is not working proper, especially if you install a new copy of Eclipse. Let me know if you have more tips to be included here. Useful when you copy a large chunk of codes without the corresponding import statements. Unit Testing: If you keep your test in another project, you need to include the project under test in your Build Path see above. Select "New JUnit 4 Test". In "Name", enter your class name. In "Class under test", browse and select the class to be tested.

The results are displayed in a special "JUnit console". These packages typically provide a " lib " directory containing JAR files ". To include source file for debugging , select "Java Source Attachment". The native library directories must be included in JRE's property " java. Under System Variable, Click on New button. It will open New System Variable dialog. It depends on your own java installation path and installed version.

Close all dialog by clicking on OK buttons as described in above image. Set Path Variable For Java. Also you need to set JDK's bin folder path in path variable of system variables. You will find bin folder inside your JDK folder. To set path system variable of JDK,. Open Environment Variables dialog as described above.

Under System Variable select Path variable. It was originally developed by James Gosling at Sun Microsystems. Java applications are compiled to bytecode class file that can run on any Java virtual machine JVM regardless of computer architecture.

Java is currently owned by the Oracle Corporation which acquired Sun Microsystems in Following tutorial will show you how to setup and configure Java 1. Check following posts if you are looking to download and install JDK 1. Java can be obtained from the Oracle Java download page. As we are installing an older Java version, you need to scroll all the way down to the bottom of the Oracle Java download page and click on the Download button in the Java Archive section.

Accept the License Agreement and pick the correct download for your operating system. In this example, we will use the Windows 64 bit version. Sign in using your Oracle account or create a new one and the download should start. Once the download is complete, locate the jdk-7uwindows-x Click Next and on the following screen optionally change the installation location by clicking on the Change In this example the install location was changed to 'C:Javajdk1.

Next, the installer will present the installation location of the public JRE. We will skip this part of the installer as the JDK installed in the previous step comes with a private JRE that can run developed code.

Yes, but you will have to configure the Windows environment variables and DrJava compiler properties yourself. If you have a bit version of Java, install the bit version of Eclipse. How can I enlarge it? Unfortunately, there is not currently a good way to change the menubar font. How can I fix this?

You probably have a bit version of Java and a bit version of Eclipse. The installer installs a bit version of Java if you have a bit machine, which takes precedent over a previously installed bit version of Java.

You can also specify which version of Java to use in the Eclipse. How can I determine whether I am running a or bit version of Windows? If you see x64 Edition , you are running the bit version of Windows; otherwise, you are running the bit version. How do I break out of an infinite loop? From the Command Prompt, type Ctrl-c When using standard input, how do I signify that there is no more data? If you are entering input from the keyboard, type Ctrl-z for EOF end of file.

How do I configure Windows to reveal the. Many Windows machines are configured to hide the file extensions. I deleted the shortcut to the Command Prompt. Where can I find it? When I type, "java -version" or "javac -version" from the Command Prompt, I get an error. I successfully compiled HelloWorld. What am I doing wrong? First, verify that the file HelloWorld. Be sure to type java HelloWorld without a trailing. When I compile or execute a program from the Command Prompt that uses the standard libraries, I get an error.

Be sure to use the wrapper scripts javac-introcs and java-introcs. How do I navigate to another drive from the Windows Command Prompt? From the Command Prompt, type H: to switch to the H: drive.

Then, use the cd command to navigate to the desired directory. Where can I learn more about Command Prompt? Microsoft maintains a command-line reference. The Windows PowerShell is a more advanced command-line shell. However, it does not currently support the redirection of standard input.