options.addOption("f","file",true,"File to save program output to"); // Parse the program arguments CommandLine commandLine = parser.parse( options, args ); // Set the appropriate variables based on supplied op
publicclassCalculator{publicstaticvoidmain(String[]args){if(args.length!=3){System.out.println("请提供两个数字和一个运算符作为命令行参数。");System.exit(1);}doublenum1=Double.parseDouble(args[0]);doublenum2=Double.parseDouble(args[1]);Stringoperator=args[2];doubleresult=0.0;switch(operator)...
调用: privatestaticDatagramSocket datagramSocket;privatestaticDatagramPacket datagramPacket;publicstaticvoidmain(String[] args){CommandLineParserparser=newPosixParser();if(!Config.parseArguments(parser, args)) {return; }try{/*** 发送数据 ***/// 初始化datagramSocket,注意与前面Server端实现的差别datagramSocke...
Java annotation-based framework for parsing Git like command line structures with deep extensibility JewelCLI 2.40.0L5Spring Shell 3 VS JewelCLI JewelCli uses an annotated interface definition to automatically parse and present command line arguments ...
Echoing Command-Line Arguments TheEchoexample displays each of its command-line arguments on a line by itself: public class Echo { public static void main (String[] args) { for (String s: args) { System.out.println(s); } } }
(config); // define parser CommandLine cmd; CommandLineParser parser = new BasicParser(); HelpFormatter helper = new HelpFormatter(); try { cmd = parser.parse(options, args); if(cmd.hasOption("a")) { System.out.println("Alpha activated"); } if (cmd.hasOption("c")) { String opt...
Java Command-Line ArgumentsGreg introduces a package of Java classes that parse the command-line parameters for HtmlXlate, an application that converts HTML to RTF. Because HtmlXlate doesn't require display graphics, Greg made it an "application...
Arguments in integer form 11 23 In the above example, notice the line int argument = Intege.parseInt(str); Here, the parseInt() method of the Integer class converts the string argument into an integer. Similarly, we can use the parseDouble() and parseFloat() method to convert the str...
options.addOption("f","file",true,"File to save program output to");//Parse the program argumentsCommandLine commandLine =parser.parse(options, args);//Set the appropriate variables based on supplied optionsbooleanverbose =false; String file= "";if(commandLine.hasOption('h')){ ...
publicclassCommandLineArguments{publicstaticvoidmain(String[]args){if(args.length!=2){System.out.println("Usage: java CommandLineArguments <arg1> <arg2>");return;}Stringarg1=args[0];Stringarg2=args[1];// 处理参数...}} 1. 2. 3. ...