This README explains how to use the solutions to the programming exercises for "Introduction to Programming Using Java, Version 7", which is freely available on the web at http://math.hws.edu/javanotes Each end-of-chapter exercise has a web page that contains a discussion of the solution and the source code for a sample solution. The archive javanotes7-exercise-solutions.zip, which can be downloaded using a link on the web site, contains all of the source code for the solutions, extracted from the solution web pages. It also contains all extra files that are required by the solutions. The solutions are organized into folders, with one folder for each chapter (except Chapter 1, which has no exercises.) This is done as a convenience to help you run the solutions, but please don't just run them! Try working on the exercises yourself, and read my discussion of the solutions on the web pages. You'll learn a lot more that way. You can also get solutions to individual exercises by copy-and-pasting the code from the solution web page into a text editor. (Copy from the web page open in a web browser, not from the HTML source of the web page. The HTML source contains extra markup that will be seen as errors by the Java compiler.) You have two options for running the solutions... ---- RUN IN AN IDE ---- If you want to run the programs in an IDE, such as Eclipse, you should be able to copy the entire contents of any one of the chapter folders into a project in the IDE, and then run the programs. Note: Do not copy the chapter folder itself; open the folder and copy the contents. You can put the examples from several chapters to the same project if you want; some files, such as TextIO.java, are duplicated in several chapters, but any two files with the same name are identical, and you only need one copy of the file in your project. ---- COMPILE AND RUN ON THE COMMAND LINE ---- If you know how to compile programs on the command line, just change into one of the chapter directories inside "sources" and use the command javac *.java to compile all the programs from that chapter. As long as your compiler supports Java 7 or higher, there should be no errors. (You might see some warnings, especially if you use a newer version of java, but warnings do not stop a program from being compiled or executed.) You can then run individual programs using the java command. For example: java HelloWorld There is one exercise in Chapter 12 that uses packages. To compile that example, change into the chapter12 folder and use the commands javac netgame/newchat/*.java on Mac or Linux or javac netgame\newchat\*.java on Windows. Then, to use the program, you need to run both the server program and the client program with the following commands (in separate command windows): java netgame.newchat.NewChatRoomServer and java netgame.newchat.NewChatRoomWindow