third_party/java/jopt-simple/src/test/java/joptsimple/examples/RequiredIfExample.java


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package joptsimple.examples;

import joptsimple.OptionParser;

public class RequiredIfExample {
    public static void main( String[] args ) {
        OptionParser parser = new OptionParser();
        parser.accepts( "ftp" );
        parser.accepts( "username" ).requiredIf( "ftp" ).withRequiredArg();
        parser.accepts( "password" ).requiredIf( "ftp" ).withRequiredArg();

        parser.parse( "--ftp" );
    }
}