How to clear Java Cache on Windows 7 and Vista

Overview: 

This article will explain how to remove Java cache from your Windows Machine. Clearing Java cache forces browsers to load the latest version of Java applets and applications and will often correct Java Webstart related problems. Please refer to the instructions below.

 

This article applies to:

  • Platform(s): Windows Vista, Windows 7
  • Java version(s): 6, 7 and 8

Finding the Java Control Panel

  • Click on the Start button and then click on the Control Panel option.

  • In the Control Panel Search enter java control panel or only java.
  • Click on the Java icon to open the Java Control Panel

  • In the Java Control Panel, under the General tab, click Settings

  •  In the Temporary Files Settings dialog box click Delete Files.

  •  The Delete Files and Applications dialog box check all boxes and click OK

  • Once deleted click OK and close out the Java Control Panel

 

 

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How to clear Java Cache on Windows XP

Overview: 

This article will explain how to remove Java cache from your Windows Machine. Clearing Java cache forces browsers to load the latest version of Java applets and applications and will often correct Java Webstart related problems. Please refer to the instructions below.

Finding the Java Control Panel

  • Click on the Start button and then click on the Control Panel option.
     
  • Double click on the Java icon to open the Java Control Panel       

  • In the Java Control Panel, under the General tab, click Settings
 
  • In the Temporary Files Settings dialog box click Delete Files…
     
  • In the Delete Files and Applications dialog box check all boxes and click OK
  • Once deleted click OK and close out the Java Control Panel

How to clear Java Cache on MAC OS X 10.7.3 and above

Overview: 

This article will explain how to remove Java cache from your Mac Machine. Clearing Java cache forces browsers to load the latest version of Java applets and applications and will often correct Java Webstart related problems. Please refer to the instructions below.

Finding the Java Control Panel

  • Click on Apple icon on upper left of screen.
  • Go to System Preferences

 

  • In System Preferences go to Search and type Java
  • Click on the Java icon to access the Java Control Panel.

 

  • In the Java Control Panel, under the General tab, click Settings

 
  • In the Temporary Files Settings dialog box click Delete Files…

  • In the Delete Files and Applications dialog box check all boxes and click OK

  • Once deleted click OK and close out the Java Control Panel
 
 

Other related Knowledge Base content

Title Video Article
How to clear Java cache on a Windows 7 computer KB2151 KB2149
How to clear Java cache on a Windows 8 computer KB2153 KB2146
How to clear Java cache on Windows XP N/A KB2148
How to clear Java cache on a Mac computer KB2152 N/A
How to clear Oracle Java cache on Linux/Unix N/A KB2145
How to install Java on a Windows computer N/A KB2129

 

 

How to clear Java Cache on Windows 8

Overview: 

This article will explain how to remove Java cache from your Windows Machine. Clearing Java cache forces browsers to load the latest version of Java applets and applications and will often correct Java Webstart related problems. Please refer to the instructions below.

 

 

Finding the Java Control Panel

Press Windows logo key + W to open the Search charm to search settings

OR
Move the Mouse pointer to the bottom-right corner of the screen, then click on the Search icon.

  • In the Search Charm make sure Settings is highlighted 
  • Enter Java Control Panel in the search box
  • Click on Java icon to open Java Control Panel.

  •  In the Java Control Panel, under the General tab, click Settings

 

  • In the Temporary Files Settings dialog box click Delete Files…

  • In the Delete Files and Applications dialog box check all boxes and click OK


  • Once deleted click OK and close out the Java Control Panel

 

 

Other related Knowledge Base content

Title Video Article
How to clear Java cache on a Windows 7 computer KB2151 KB2149
How to clear Java cache on Windows XP N/A KB2148
How to clear Java cache on a Mac computer KB2152 N/A
How to clear Java cache on MAC OS X 10.7.3 and above N/A KB2147
How to clear Oracle Java cache on Linux/Unix N/A KB2145
How to install Java on a Windows computer N/A KB2129

 

 

How to clear Oracle Java Cache on Linux/Unix

Overview: 

This article will explain how to remove Java cache from your Linux Machine. Clearing Java cache forces browsers to load the latest version of Java applets and applications and will often correct Java Webstart related problems. Please refer to the instructions below.

Finding the Java Control Panel

  • Open a Terminal window
  • Type javaws -viewer and hit enter

  • Both the Java Control Panel and Java Cache Viewer will load
  • Close the Java Cache Viewer

  • In the Java Control Panel, under the General tab, click Settings

  • In the Temporary Files Settings dialog box click Delete Files…

  •  In the Delete Files and Applications dialog box check all boxes and click OK

  • Once deleted click OK and close out the Java Control Panel

 

 

Other related Knowledge Base content

Title Video Article
How to clear Java cache on a Windows 7 computer KB2151 KB2149
How to clear Java cache on a Windows 8 computer KB2153 KB2146
How to clear Java cache on Windows XP N/A KB2148
How to clear Java cache on a Mac computer KB2152 N/A
How to clear Java cache on MAC OS X 10.7.3 and above N/A KB2147
How to install Java on a Windows computer N/A KB2129

 

 

 

TWS And MultiCharts Advanced Charting FAQ's

Overview: 

Since build 944, the Trader Workstation offers integration with MultiCharts for TWS. This article provides a basic FAQ.

Background: 

MultiCharts.net advanced charting is now integrated into TWS as a complement/upgrade to our existing interactive charts. The tool is free of charge to IB customers and includes:

  • Advanced charting
  • Drawing tools and a large library of more than 300 indicators
  • User-programmable technical indicators
  • Strategy backtesting
  • User-programmable trading strategy signals

User-programmable features can be programmed using C# or Visual Basic. If you decide you want to transmit orders from MultiCharts.net to TWS, you can upgrade to the trading version of MultiCharts.net for $39.00 per month (following a one-month free trial).

MultiCharts PowerLanguage
We also offer a more advanced flavor of MultiCharts for customers who are not programmers, but who require sophisticated features including automatic order transmission from MultiCharts to TWS and the ability to program complex custom technical indicators. This version, MultiCharts PowerLanguage, offers all of the charting features of MultiCharts.net along with PowerLanguage, a more user-friendly computer programming language with a small learning curve that was designed to be used by non-programmers. The PowerLanguage version is available for $39.00 per month (following a one-month free trial).

Please note that MultiCharts is currently not supported for accounts holding a large number of positions and these accounts may experience stability issues if they use the tool. Also note that these two products are independent, and charting details set up in MultiCharts.net will not be transferred over to MultiCharts PowerLanguage.

To download and install MultiCharts, from the New Window drop-down in Mosaic select MultiCharts. From TWS, use the Analytical Tools menu. Choose to download either MultiCharts.net (free) or MultiCharts PowerLanguage ($39.00/month following free one-month trial). Please note that the initial download may take some time.

Questions and Answers

Q: What is the recommended build of the TWS in order to interface with MultiCharts for TWS and MultiCharts.NET for TWS?

Answer: TWS build 944 or above.

Q: Is the MultiCharts for TWS interface compatible with Mac/Linux machines?

Answer: No. MultiCharts is a Windows-only software. 

Q: Is MultiCharts for TWS compatible with both 32-bit and 64-bit systems?

Answer: Yes. MultiCharts for TWS is compatible with both 32-bit and 64-bit system. 

Q: Does the customer need to install anything prior to the use of MultiCharts for TWS?

Answer: No, the installation of the needed packages takes place automatically when starting the platform from within the TWS.

Q: Is any additional configuration in the TWS needed to be able to use MultiCharts for TWS?

Answer: No additional step on the TWS side is needed - all components of the software that are needed for the launch are included in the TWS. Then, after the launch has started, the software automatically downloads all necessary components.

 Please note, that it is not necessary to enable “ActiveX and Socket client connection” in the API configuration window of the TWS.

Q: Is there any prerequisite to be met prior to the launch, such as a special Java version, etc.?

Answer: No, there isn't, but the user needs to be administrator of the machine, he starts the platform on, or at least an administrator has to perform that during the first launch. This is due to the installation of some system components at the beginning.

Q: Is it possible to connect other third party software to the TWS at the same time?

Answer: Yes. It is possible to connect other third party software at the same time. However, user may have to adjust the connection setup of the third party application. Please note that third party application must provide a unique client id number in order to interface with TWS. MultiCharts for TWS utilizes client id zero (Client id = 0) as the default value. In third party application setup, it is critical that user must verify the client id number and make sure it is not assigned to zero. If it is assigned to zero, then user must adjust the client id number.

 If user can't determine the client id number of this non-MultiCharts third party application, then IB strongly recommend that user must consult with the third party vendor for verification.

Q: What happens if another version of MultiCharts is installed on the user's computer?

Answer: The two versions may exist simultaneously as they are different programs.

Q: How will the update take place?

Answer: This happens automatically - version control is done at the application’s start and the user is presented with the option to update or to do that later.

Q: What is the difference between the two versions of the platform: MultiCharts PowerLanguage for TWS and MultiCharts.NET for TWS?

Answer: With the . NET version at the end of the Trial period of 30 days (no matter if you have traded or not from within this application), you will need to pay if you want to keep your trading privileges, otherwise you can continue using the other features of MultiCharts.NET for TWS.

The Multicharts PowerLanguage for TWS will lose all functionality at the end of the 30 days of the Trial period and you will have to obtain a license in order to continue using the application.

If a user starts with .NET and then decides he wants the PowerLanguage subscription version, whatever configuration has been set up in the .NET version is discarded. The two platforms work like two discrete products.

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