Java Error opening registry key

Make sure you remove any java.exe, javaw.exe and javaws.exe from your Windows\System32 folder and if you have an x64 system (Win 7 64 bits) also do the same under Windows\SysWOW64. If you can’t find them at these locations, try deleting them from C:\ProgramData\Oracle\Java\javapath.

How fast is D compared to C++?

To enable all optimizations and disable all safety checks, compile your D program with the following DMD flags: -O -inline -release -noboundscheck EDIT: I’ve tried your programs with g++, dmd and gdc. dmd does lag behind, but gdc achieves performance very close to g++. The commandline I used was gdmd -O -release -inline (gdmd is … Read more

Dynamically Changing log4j log level

File Watchdog Log4j is able to watch the log4j.xml file for configuration changes. If you change the log4j file, log4j will automatically refresh the log levels according to your changes. See the documentation of org.apache.log4j.xml.DOMConfigurator.configureAndWatch(String,long) for details. The default wait time between checks is 60 seconds. These changes would be persistent, since you directly change … Read more

What’s the difference between SDK and Runtime in .NET Core?

According to the .Net Core Guide, .NET Core is composed of the following items A .NET runtime, which provides a type system, assembly loading, a garbage collector, native interop and other basic services. A set of framework libraries, which provide primitive data types, app composition types and fundamental utilities. A set of SDK tools and … Read more

Java Runtime.getRuntime(): getting output from executing a command line program

Here is the way to go: Runtime rt = Runtime.getRuntime(); String[] commands = {“system.exe”, “-get t”}; Process proc = rt.exec(commands); BufferedReader stdInput = new BufferedReader(new InputStreamReader(proc.getInputStream())); BufferedReader stdError = new BufferedReader(new InputStreamReader(proc.getErrorStream())); // Read the output from the command System.out.println(“Here is the standard output of the command:\n”); String s = null; while ((s = stdInput.readLine()) … Read more

What is the C runtime library?

Yes, libcmt is (one of several) implementations of the C standard library provided with Microsoft’s compiler. They provide both “debug” and “release” versions of three basic types of libraries: single-threaded (always statically linked), multi-threaded statically linked, and multi-threaded dynamically linked (though, depending on the compiler version you’re using, some of those may not be present). … Read more

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)