jdk1.6

JavaVM *javaVM = NULL; JNIEnv *jniEnv = NULL; ( createJavaVM )( &javaVM, ( void * )&jniEnv, &javaVMInitArgs ) where javaVM * and jniEnv * are global variables Is it ok to save JavaVM * as a global variable and use it elsewhere? Yes. Is it ok to save JNIEnv * as a global variable and use it elsewhere? No. That represents a context for a specific JNI method invocation. It is dependent on the current thread, the arguments to the current method, the local references that have been created by the current method, all sorts of things, and it becomes invalid once that JNI method returns. 来源： https:/

I have a Java 1.6 desktop application, started with javaw from a batch file on Windows XP. There is a .lnk link to this batch file, which is placed to windows Startup folder in order to start this application on every system boot. The application uses SystemTray class to display an icon on the system tray in case it is running. Starting this application manually there is no problem. If it is started by windows startup process, there is no icon displayed (not even a blank icon), however the application is running. The startup process is also slowed down. How can I overcome this? Thank you! Are

I am getting compile errors in eclipse when using the @Override annotation for a class that is implementing an interface. Compiler compliance level is set to Java 6.0. I am using the latest version of the 6.0 jdk. Error: "The method {methodname} of type {classname} must override a superclass method" Same code works fine on mac with comparable configuration. public interface ChannelIF { ... public boolean canSendNarrowcast(); public boolean canSendBroadcast(); } public class FacebookChannel implements ChannelIF { ... @Override public boolean canSendNarrowcast() { return true; } @Override public

I am using eclipse europa (3.5) on windows vista home premium 64-bit using JDK 1.6.0_18 (32 BIT). Normally, I am able to put breakpoints just fine; However, for a particular class which is NOT part of the project (this class is inside a .JAR file (.JAR file is part of the project) ), although I have attached a source directory to this .JAR file, I am unable to place a breakpoint in this class. If I double-click on the breakpoint pane(left border), I notice that a class breakpoint is placed. I was wondering if there was NO debug info; However, found that this particular class was compiled using

I have installed windows 7 x64, therefore i have a confusion whether i have to install JDK x64 or JDK x86? please help me, thank you You should install x64 so Java takes advantage of your 64 bit OS. You dont have to install the x64 version of the JDK if you're running on 64-bit Windows; the x86 (32-bit) version also works on 64-bit Windows. You can even have both the 32-bit and 64-bit version installed at the same time (in different directories, ofcourse). Ofcourse both have advantages and disadvantages: With the 64-bit version you'll take full advantage of the 64-bit capabilities of your CPU

I'm using JDK7 and Eclipse Indiago in Windows 7 64-bit. I set environment variable JAVA_HOME to F:\JDK7 and add %JAVA_HOME%\bin in path. It's my sample code: com.sun.tools.javac.Main m1 = new com.sun.tools.javac.Main(); m1.compile(source); Error I get: Type com.sun.tools cannot be resolved to a type Why there is no com.sun.tools ? What's the problem ? It looks like you are using Eclipse. By default Eclipse only imports JRE jars, not the ones from the JDK. Solution 1: Go to Eclipse preferences (on Windows: Window-->Preferences) Open the preference Java-->Installed JREs Select your JRE and press