Most Java developers who come from a C/C++ background have probably at one time wished for a Java equivalent of sizeof(). Although Java lacks a true sizeof() equivalent, the Instrumentation interface ...

For example, you can use pattern matching to find out if a Java Object is a String. Here are some advantages of pattern matching: ...

Pass the static System.in object to the Scanner’s Java constructor Use Scanner’s next() method to take input one String at a time Optionally use the Scanner’s hasNext() method to loop over the process ...

Need to disassemble a Java class file? Want to look at the bytecode instructions generated from compiling source? These javap tool examples will show you how to use the javap command properly.