CSCE 3193 Lecture Notes - Lecture 2: Javadoc, Java Development Kit, List Of Utility Software
25 Aug 2016
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Document Summary
Jvm(java virtual machine) must take public static void main. Javadoc utility program: reads javadoc comments and uses them to prepare program"s documentation in html format. Compiler eliminates blank spaces and lines-use many to increase readability. Identifier-a series of characters consisting of letters, digits, underscores, and dollar signs, doesn"t begin with digit and doesn"t contain spaces. Tip:indent body of each class declaration for readability. Parentheses after identifier main indicate that it"s a program building block called a method. Allows java applications to display strings in the command window. Tip: break a working program to familiarize yourself with compiler"s syntax-error messages. If command isn"t recognized, jdk didn"t install properly. Reboot or new command window may help after changes. Launches the jvm, which loads the . class file for class welcome1(loads bytecode) Programs remember numbers and other data and process them, called variables. Ex: int number1;//java creates space in memory, writes value of integer.
