1.A Java compiler is a compiler for the programming language Java. The most common form of output
from a Java compiler is Java class files containing platform-neutral Java byte code, but there are also
compilers that gives optimized native machine code for a particular hardware/operating
system combination.
2. Applet Viewer is a standalone command-line program from Sun to run Java applets. Applet viewer is
generally used by developers for testing their applets before deploying them to a website .As a Java
developer , it is a preferred option for running Java applets that do not involve the use of a web
browser. Even though the applet viewer logically takes the place of a web browser, it functions very
differently from a web browser.
3. A disassembler is a computer program that translates machine language into assembly language—the
inverse operation to that of an assembler. A disassembler differs from a decompiler , which targets
a high-level language rather than an assembly language. Disassembly, the output of a disassembler, is
often formatted for human-readability rather than suitability for input to an assembler, making it
principally a reverse-engineering tool.
4. Java doc (originally cased Java Doc) is a documentation generator created by Sun Microsystems for
the Java language (now owned by Oracle Corporation).
