Quelle PrintClassFile.java Sprache: JAVA

/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements.  See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership.  The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License.  You may obtain a copy of the License at
*
*   http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied.  See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Contributor(s): Thomas Ball
*/

import org.netbeans.modules.classfile.*;
import java.io.*;
import java.util.*;

/**
* PrintClassFile:  write a class as a println statement.
*
* @author Thomas Ball
*/
public class PrintClassFile {
    String thisClass;

    PrintClassFile(String spec) {
        thisClass = spec;
    }

    void print(PrintStream out) throws IOException {
InputStream is = new FileInputStream(thisClass);
ClassFile cfile = new ClassFile(is);
        out.println(cfile);
    }

    /**
     * An error routine which displays the command line usage
     * before exiting.
     */
    public static void usage() {
        System.err.println(
            "usage: java PrintClassFile [ ...]");
        System.exit(1);
    }

    public static void main(String[] args) {
        if (args.length == 0)
            usage();

        for (int i = 0; i < args.length; i++) {
            if (args[i].charAt(0) == '-')
                usage();
            else {
                try {
                    PrintClassFile pc = new PrintClassFile(args[i]);
                    pc.print(System.out);
                } catch (IOException e) {
                    System.err.println("error accessing \"" + args[i] +
                                       "\": " + e.toString());
                }
            }
        }
    }
}

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