How to Increase Java Memory in Windows 7

Running Java applications in computers takes some memory during the process which is known as Java memory (Java heap). Frequently, it is necessary to increase that heap to prevent throttling the performance of the application. This is how to for Windows 7.

1. Go to Control Panel. Click on "Start" button. Then click on "Control Panel."
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2. 2
   

   Find Programs
   Select Programs. In the left side of Control Panel click on "Programs." Pleas click on the "Programs" written with green color, not the "Uninstall a program," which is in blue color.
3. 3
   

   Find Java
   Go to Java settings. In the next dialog click on "Java," usually at the bottom of the other Programs; "Java Control Panel" dialog pop-up opens.
4. 4
   

   Find Java Tab
   Select "Java" tab. Inside the Java tab, click on "View" button. It opens the "Java Runtime Environment Settings"
5. 5
   

   View Java Runtime Environment
   Change amount of heap. In the "Runtime Parameters" column change the value, or if it is blank decide for the new value, of the Java memory.
6. 6
   

   Modify Runtime Parameter
   Modify the parameter. To modify the parameter, double click in the "Runtime Parameters" column and,
   • type -Xmx512m that assigns 512MB memory for the Java.
   • type -Xmx1024m that assigns 1GB memory for the Java.
   • type -Xmx2048m that assigns 2GB memory for the Java.
   • type -Xmx3072m that assigns 3GB memory for the Java, and so on.
   • Please note, it begins with a minus sign and ends to an m.
   • Also note, there is no blank space between characters.
7. 7
   Close the dialogue box. Click on "OK" button on the "Java Runtime Environment Settings" to close it.
8. 8
   Close Java dialogue box. "Apply" button in the "Java Control Panel" has been enabled now. You should click on "Apply" to finalise the new Java memory. Then click on the "OK" button.
9. 9
   Close the Windows 7 Control Panel.
   Tips

• No restart of the computer is necessary after modifying the Java memory.
• This is a 'temporary' amount of memory which is available to Java applications when you are running them. It does not "steal" or permanently deduct from the memory of computer. It is only a guarantee for Java Virtual Machine.
• The value you select depends on how much memory your computer has and how much memory all running processes consume.
• If Java cannot find enough memory it dispatches an "exception" message to the Windows as, "Exception in thread "main" java.lang.OutOfMemoryError: Java heap space."
• This method with some modification also can be used for Windows Xp
• This method also can be used for Windows 8.

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How to check my windows xp os is 32 bit or 64 bit?

Hey Friend! Read this detailed info to check if you pc is 32bit or 64!!! (all latest windows) READ IT!


This step-by-step article describes how to determine whether a computer is running a 32-bit Microsoft Windows operating system or a 64-bit Microsoft Windows operating system. To determine whether your computer is running a 32-bit Windows operating system or a 64-bit Windows operating system, examine the system information. To do this, use one of the following methods : -

Windows Vista
Method 1
1. Click Start, type system in the Start Search box, and then click system in the Programs list.
2. The operating system appears as follows:• For a 64-bit version operating system: 64-bit Operating System appears for the System type under System.
• For a 32-bit version operating system: 32-bit Operating System appears for the System type under System.
Method 2
1. Click Start, type system in the Start Search box, and then click System Information in the Programs list.
2. The operating system appears as follows:• For a 64-bit version operating system: x64-based PC appears for the System type under Item.
• For a 32-bit version operating system: x86-based PC appears for the System type under Item.

Microsoft Windows XP Professional
Method 1
1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the General tab. The operating system appears as follows:• For a 64-bit version operating system: Microsoft Windows XP Professional x64 Edition Version < Year> appears under System.
• For a 32-bit version operating system: Microsoft Windows XP Professional Version< Year> appears under System.
Note <Year> is a placeholder for a year.
Method 2
1. Click Start, click Run, type winmsd.exe, and then click OK.
2. In the details pane, locate Processor under Item. Note the value. • If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of the Windows operating system.
• If the value that corresponds to Processor starts with ia64 or AMD64, the computer is running a 64-bit version of the Windows operating system.

Microsoft Windows Server 2003
Method 1
1. Click Start, click Run, type sysdm.cpl, and then click OK.
2. Click the General tab. The operating system appears as follows:• For a 64-bit version operating system: Microsoft Windows Server 2003 Enterprise x64 Edition appears under System.
• For a 32-bit version operating system: Microsoft Windows Server 2003 Enterprise Edition appears under System.
Method 2
1. Click Start, click Run, type winmsd.exe, and then click OK.
2. In the details pane, locate Processor under Item. Note the value. • If the value that corresponds to Processor starts with x86, the computer is running a 32-bit version of the Windows operating system.
• If the value that corresponds to Processor starts with EM64T or ia64, the computer is running a 64-bit version of the Windows operating system.

Note: - Intel Itanium-based computers can only run 64-bit versions of Windows. Intel Itanium-based computers cannot run a 32-bit Windows operating system. Currently, 64-bit versions of Windows only run on Itanium-based computers and AMD64-based computers.