Even Safe Mode Doesn't Work If you can't even get into Safe Mode, you should use the Startup Repair tools, which can be accessed from the Advanced options in the Safe Mode menu; you can pull out your system repair disc, or. I’ve tried to collect a set of basic troubleshooting steps that should solve most problems encountered while using Photoshop. If you happen to encounter a crash, be sure to submit all crash reports. If you submit a crash. ![]() JDK Development Tools. General. General. Information (file structure, classpath, how classes are. Enhancements. Standard JDK Tools and Utilities. Basic Tools. (appletviewer, extcheck, jar, java, javac, javadoc, javah. Security Tools. (keytool, jarsigner, policytool, kinit, klist, ktab)Internationalization. Tools (native. 2ascii)Remote Method Invocation. RMI) Tools (rmic, rmiregistry, rmid, serialver)Java IDL and RMI- IIOP. Tools (tnameserv, idlj, orbd, servertool)Java Deployment. Tools (javapackager, pack. Java Web Start. Tools (javaws)Java Troubleshooting. Profiling, Monitoring and Management Tools (jcmd, jconsole, jmc, jvisualvm)Java Web Services. Tools (schemagen, wsgen, wsimport, xjc)Experimental JDK Tools and. Troubleshooting computers is like solving the problems you solve in everyday life. Once you understand the basic structure, you can easily determine where the problem lies. Of course, this page is designed to guide you through. Polymerase Chain Reaction: Basic Protocol Plus Troubleshooting and Optimization Strategies. ![]() Utilities. NOTE - The tools described. They might not be available. JDK versions. Monitoring. Tools (jps, jstat, jstatd)Troubleshooting. Tools (jinfo, jhat, jmap, jsadebugd, jstack)Scripting. Tools (jrunscript)Troubleshooting Documentation. Java. They are the tools. Tool Name. Brief Description. Links to Reference Pagesappletviewer. Run and debug applets without a web browser. In this. release, a single launcher is used both for development and. The old deployment launcher, jre, is no longer. Used to write native. Equivalent functionality is available on the Solaris. For example, for Solaris 1. Equivalent functionality is available on the. Solaris operating system via the klist tool. For example, for. Solaris 1. 1, see the. Equivalent functionality is available on the. Solaris operating system via the kadmin tool. For example, for. Solaris 1. 1, see the. ORBD is used instead of the Transient Naming Service. ORBD includes both a Transient Naming Service. Persistent Naming Service. The orbd tool incorporates. Server Manager, an Interoperable Naming. Service, and a Bootstrap Name Server. When used in conjunction with. Server Manager locates, registers, and. The compressed packed files are highly compressed JARs. It can monitor both local and remote JVMs. It. can also monitor and manage an application. See Monitoring and. Management for the Java Platform for more information. See Java Visual. VM for more information. The tools described in this section are unsupported and. They may. not be available in future JDK versions. These tools are supported on all platforms except Windows 9. Windows ME. Tool Name. Brief Description. Links to Reference Pagesjps. Experimental: JVM Process. Status Tool - Lists instrumented Hot. Spot Java virtual machines on a. The documents. at this site contain suggestions about what to try before. The following tools can be used to run scripts that interact with the Java platform. Tool Name. Brief Description. Links to Reference Pagesjjs. Runs the Nashorn command- line script shell. This tool is unsupported and experimental in nature and should be used with that in mind. It might not be available in future JDK versions. Computer Basics: Basic Troubleshooting Techniques. Computer troubleshooting is essential to fixing technical issues. When troubleshooting computer lessons like this can help. Troubleshooting. Do you know what to do if your screen goes blank? What if you can't seem to close an application, or can't hear any sound from your speakers? Whenever you have a problem with your computer, don't panic! There are many basic troubleshooting techniques you can use to fix issues like this. In this lesson, we'll show you some simple things to try when troubleshooting, as well as how to solve common problems you may encounter. General tips to keep in mind. There are many different things that could cause a problem with your computer. No matter what's causing the issue, troubleshooting will always be a process of trial and error. We recommend starting by using the following tips. Write down your steps: Once you start troubleshooting, you may want to write down each step you take. This way, you'll be able to remember exactly what you've done and can avoid repeating the same mistakes. If you end up asking other people for help, it will be much easier if they know exactly what you've tried already. Take notes about error messages: If your computer gives you an error message, be sure to write down as much information as possible. You may be able to use this information later to find out if other people are having the same error. Always check the cables: If you're having trouble with a specific piece of computer hardware, such as your monitor or keyboard, an easy first step is to check all related cables to make sure they're properly connected. Restart the computer: When all else fails, restarting the computer is a good thing to try. This can solve a lot of basic issues you may experience with your computer. Using the process of elimination. If you're having an issue with your computer, you may be able to find out what's wrong using theprocess of elimination. This means you'll make a list of things that could be causing the problem and then test them out one by one to eliminate them. Once you've identified the source of your computer issue, it will be easier to find a solution. Scenario: Let's say you're trying to print out invitations for a birthday party, but the printer won't print. You have some ideas about what could be causing this, so you go through them one by one to see if you can eliminate any possible causes. First, you check the printer to see that it's turned on and plugged in to the surge protector. It is, so that's not the issue. Next, you check to make sure the printer's ink cartridge still has ink and that there is paper loaded in the paper tray. Things look good in both cases, so you know the issue has nothing to do with ink or paper. Now you want to make sure the printer and computer are communicating correctly. If you recently downloaded an update to your operating system, it might interfere with the printer. But you know there haven't been any recent updates and the printer was working yesterday, so you'll have to look elsewhere. You check the printer's USB cord and find that it's not plugged in. You must have unplugged it accidentally when you plugged something else into the computer earlier. Once you plug in the USB cord, the printer starts working again. It looks like this printer issue is solved! This is just one example of an issue you might encounter while using a computer. In the rest of this lesson, we'll talk about other common computer problems and some ways to solve them. Simple solutions to common problems. Most of the time, problems can be fixed using simple troubleshooting techniques, like closing and reopening the program. It's important to try these simple solutions before resorting to more extreme measures. If the problem still isn't fixed, you can try other troubleshooting techniques. Problem: Power button will not start computer. Problem: An application is running slowly. Problem: An application is frozen. Sometimes an application may become stuck, or frozen. When this happens, you won't be able to close the window or click any buttons within the application. Problem: All programs on the computer run slowly. Solution 1: Run a virus scanner. You may have malware running in the background that is slowing things down. Solution 2: Your computer may be running out of hard drive space. Try deleting any files or programs you don't need. Solution 3: If you're using a PC, you can run Disk Defragmenter. To learn more about Disk Defragmenter, check out our lesson on Protecting Your Computer. Problem: The computer is frozen. Sometimes your computer may become completely unresponsive, or frozen. When this happens, you won't be able to click anywhere on the screen, open or close applications, or access shut- down options. Problem: The mouse or keyboard has stopped working. Solution 1: If you're using a wired mouse or keyboard, make sure it's correctly plugged into the computer. Solution 2: If you're using a wireless mouse or keyboard, make sure it's turned on and that its batteries are charged. Problem: The sound isn't working. Problem: The screen is blank. Solution 1: The computer may be in Sleep mode. Click the mouse or press any key on the keyboard to wake it. Solution 2: Make sure the monitor is plugged in and turned on. Solution 3: Make sure the computer is plugged in and turned on. Solution 4: If you're using a desktop, make sure the monitor cable is properly connected to the computer tower and the monitor. Solving more difficult problems. If you still haven't found a solution to your problem, you may need to ask someone else for help. As an easy starting point, we'd recommend searching the Web. It's possible that other users have had similar problems, and solutions to these problems are often posted online. Also, if you have a friend or family member who knows a lot about computers, they may be able to help you. Keep in mind that most computer problems have simple solutions, although it may take some time to find them. For difficult problems, a more drastic solution may be required, like reformatting your hard drive or reinstalling your operating system. If you think you might need a solution like this, we recommend consulting a professional first. If you're not a computer expert, it's possible that attempting these solutions could make the situation worse.
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