软件简介

CLOPS 是一个用来处理 Java 程序中的命令行参数的类库。

示例代码：

import java.io.File;
import generated.WcParser;
import generated.WcOptionsInterface;

public class Main {
public static void main(String[] args) throws Exception {
WcParser parser = new WcParser();
if (!parser.parse(args)) {
System.out.println(“Usage: java Main [OPTIONS] file…”);
System.exit(1);
}
WcOptionsInterface opt = parser.getOptionStore();
if (opt.isWordsSet())
System.out.println(“I should print a word count.”);
if (opt.isBytesSet())
System.out.println(“I should print a byte count.”);
for (File f : opt.getFiles()) checkFile(f);
}

public static void checkFile(File f) {
System.out.print(“The file ” + f.getPath());
if (f.exists())
System.out.println(” exists.”);
else
System.out.println(” does not exist.”);
}
}