"Java Tool Tutorials" is a free tutorial book based on notes and sample codes collected by the author while he was learning Java tools himself. Topics includes: book, breakpoint, class, classpath, debugging, free, import, java, javac, jar, jdb, J2SE, JDK, JPDA, notes, source, sourcepath, thread, tutorials. Key sections: 'javac' - The Java Compiler - "-sourcepath" - Specifying Source Path - "-d" - Specifying Output Directory - "import" Statements - 'java' - The Java Launcher - "-classpath" - Specifying Class Path - "-jar" - Executable JAR Files - "-X" Options to Control Memory Size - "javaw" - Launching Java Applications without Console - 'jdb' - The Java Debugger - Attaching "jdb" to Running Applications - Debugging Commands - Multi-Thread Debugging Exercise - JAR File Format and 'jar' Tool - JAR Files Are ZIP Files - Adding "manifest" to JAR Files - Using JAR Files in Class Paths - Creating Executable JAR Files