要运行此Java程序,必须从命令提示符传递至少一个参数。 classCommandLineExample{publicstaticvoidmain(Stringargs[]){System.out.println("Your first argument is: "+args[0]);}} 1. 2. 3. 4. 5. Java 编译命令:javac CommandLineExample.java执行命令:java CommandLineExample sonoo 执行以上命令,输出以下结...
public class TestCommandLineArgs { public static void main(String args[]){ for(int i =0; i< args.length; i++){ System.out.println(args[i]); } } } 1. 2. 3. 4. 5. 6. 7. 其中args[0] 代表的是第一个参数,与C的命令行参数有所不同。 注意: 1.命令行参数使用空格符分隔,如果参...
让我们检查一下main方法,看看传递给应用程序的参数出现在哪里: 命令行参数可以在名为的String数组中找到args。 例如,让我们考虑一个被调用的应用程序,CommandLineArgs其唯一的操作是打印传递给它的命令行参数: 命令行参数的语法 Java运行时引擎(JRE)期望遵循特定语法传递参数,如下所示: 在上面,“java”调用JRE,后跟...
package com.opensource.myapp; import org.apache.commons.cli.*; public class Main { /** * @param args the command line arguments * @throws org.apache.commons.cli.ParseException */ public static void main(String[] args) throws ParseException { // define options Options options = new Options(...
JAVA public class Args { public static void main(String[] args) { // for (String arg : args) // System.out.println(arg); //或者下面的遍历方法 for (int i = 0; i
The command-line arguments in Java allow us to pass arguments during the execution of the program. As the name suggests arguments are passed through the command line. Example: Command-Line Arguments class Main { public static void main(String[] args) { System.out.println("Command-Line ...
args[2] =kramer args[3] = george 注意不包含文件名,也就是说:args[0]不是BooksTest,这点与python,C不一样 PYTHON importsysiflen(sys.argv) > 1:print(sys.argv)foriinrange(len(sys.argv)):print(sys.argv[i])else:print((sys.argv))print(sys.argv[0])#或者用下面的方式遍历list#for item ...
以下是一个简单的例子:publicclassCommandLineArgsExample{publicstaticvoidmain(String[]args){if(args....
CommandLine cmd = parser.parse(options, args); // check the options have been set correctly System.out.println(cmd.getOptionValue("t")); System.out.println(cmd.getOptionValue("f")); if (cmd.hasOption("b")) { System.out.println(new Date()); ...
instantiate theOptionParserclass with the Command class as the arguement to have it registered parse the command line args with OptionParser.parse() This is common to all comand line applications built using Rop, regardless how complex the application is. ...