readandwritebinaryfile.java

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/**
 * 北大青鸟APTECH
 * 版权所有
 */
import java.io.FileInputStream;
import java.io.DataInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.FileOutputStream;
import java.io.DataOutputStream;

/**
 * 演示二进制文件的读写。
 */

public class ReadAndWriteBinaryFile {
  /**
   * main方法
   * @param args String[]
   */
  public static void main(String[] args) {

    try {
      FileInputStream fis = new FileInputStream("HelloWorld.class");
      DataInputStream dis = new DataInputStream(fis);
      FileOutputStream outFile = new FileOutputStream("temp.class");
      DataOutputStream out = new DataOutputStream(outFile);
      int temp;
      while ( (temp = dis.read()) != -1) {
        out.write(temp);
      }
      fis.close();
      out.close();
    }
    catch (EOFException eof) {
      System.out.println("EOF reached ");
    }
    catch (IOException ioe) {
      System.out.println("IO error: " + ioe);
    }
    System.out.println("文件复制成功");

  }
}