A Java Archive, or JAR file, contains all of the various components that make up a self-contained, executable Java application, deployable Java applet or, most commonly, a Java library to which any ...

A Java compiler is a program that takes the text file work of ... A compiler scans the complete source code in one go and combines all the code files into one executable program (.exe file). It then ...

Users should make sure of proper indentations since neither Notepad nor Word would help you with that, and also that the file is saved as a ‘.java’ file and not as a ‘.txt’ file.