while installation of java in Linux there is some usage of update-alternatives command since i am new to Linux environment i want to know what this command does and...
Difference between a script and a program?
You can add one of the Java path to PATH variable using the following command. export PATH=$PATH:/usr/java/jre1.6.0_24/bin/ You can add this line to .bashrc file in your home directory....
Like other answerers, I’d definitely prefer to put the loops in a different method, at which point you can just return to stop iterating completely. This answer just shows...
Apache Commons is generally known as a solid project. Keep in mind, though, you’ll still have to send a verification email to the address if you want to ensure...
StringBuilder sb = new StringBuilder(); for(int i=0;i<100;i++){ sb.insert(0, Integer.toString(i)); } Warning: It defeats the purpose of StringBuilder, but it does what you asked. Better technique (although still not ideal):...
Try this… – The problem here is about the scope of the variable. – i should be declared of type int, which is local to the run() method instead...
Set Date in a single line
You are storing the thread in a field. If the method is called in two threads, the readThread.start() can be called twice for the same thread. You need to ensure readCommand...
Have a look at the Java Virtual Machine Specification, chapter 2.9. It say on the <init> name: At the level of the Java Virtual Machine, every constructor written in...