When we compile a java program. It is converted to a system specific bytecode format by the javac compiler. You can see the MyFirstJavaProgram.class file generated in the same folder.Using java command, we can execute this class file and run the program.

JAVA_HOME refers to jdk/bin directory. It is used by a java based application.

Environment variable PATH should be set to point to where the Java binaries have been installed. Refer to your shell documentation if you have trouble doing this.Example, if you use bash as your shell, then you would add the following line to the end of your '.bashrc: export PATH=/path/to/java:$PATH' Read More

Yes, StringBuffer class is final Java. We cannot override this class.

C++ is a programming language developed by Bjarne Stroustrup in 1979 at Bell Labs. C++ is regarded as a middle-level language, as it comprises a combination of both high-level and low-level language features. It is a superset of C, and that virtually any legal C program is a legal C++ ... Read More

You probably need to activate the change. Other option is by deleting the description and enter the wrong character in data element name.This will make the system show an error message since that element does not exist.Correct the DDIC element spelling. The system now considers this a big enough change ... Read More