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java（java） Java Technology JAVA program design Experimental instruction Experiment 1. Write the first Java program Time: second weeks, 9.10 I. experimental purposes 1. 、 understanding of the installation and use of JDK 2. Java Applet 3. Java Application The key two: Understand the installation and use of JDK Three hours: 2 hour experiment. Four. The contents and steps of experiment 1. download the free tool JDK1.4 from the SUN company website and install, and when you install it, set the path to the installed subdirectory, such as JDK installed under c:\jdk1.4, and type the following command at the DOS prompt: Path = c:\jdk1.4\bin 2. use the JDK tool to complete the following Application program, edit and run successfully. The following graphic character: * + + * * * + + + + * * * * * 3.2. uses the JDK tool to complete the following Applet program, editing and running successfully. The following graphic character: * + + * * * + + + + * * * * * Five. Experimental requirements 1. organize the results and experience of the computer, summarize the experience of Java, Applet and Application development and debugging. 2. complete test report. Before each class, hand in the email or disk immediately according to the registration number. In experiment two, Java basic grammar Time: third weeks, 9.18 I. experimental purposes 1. familiar with and understanding the data types, operators, expressions, program structures, etc in Java 2. learn to use the content you have learned to prepare simple programs The key two: Master the basic grammar rules of Java language Three hours: 2 hour experiment. Four. The contents and steps of experiment 1, the design of a Java program, can be arbitrary two positive integers m and N, find the greatest common divisor and least common multiple. Tip: routine that gets the parameters of the program Public class {canshu Public, static, void, main (String[], args) { Int, I, j; If (args.length0) I = Integer.parseInt (args[0]); Else I =0; If (args.length