copyfile.java

java入门经典教程 java入门经典教程 java入门经典教程

// 例5.3.3 CopyFile.java
import java.io.*;
class CopyFile
{
	public static void main(String args[])
	{
		int i;
		FileInputStream fin = null;
		FileOutputStream fout = null;
		try
		{
			// 打开输入流
			try
			{
				fin = new FileInputStream("ReadFileExample.doc");
			} catch(FileNotFoundException e) {
				System.out.println("Input File Not Found");
			}
			// 打开输出流
			try
			{
				fout = new FileOutputStream("CopyFileExample.doc");
			}catch(FileNotFoundException e) {
				System.out.println("Error Opening Output File");
			}
			// 进行文件拷贝
			while ((i = fin.read())!=-1)
			{
				fout.write(i);
			}
			fin.close();
			fout.close();
		}catch(IOException e) {
			System.out.println("File Error");
		}
	}
}