testfilereader.java

来自「一些关于软件质量保证与测试的资料」· Java 代码 · 共 39 行

import java.io.*;

public class TestFileReader {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		String s;
		try {
			File f = new File ("d:\\employee.txt");
			FileInputStream fin = new FileInputStream(f);
			InputStreamReader is = new InputStreamReader(fin);
			BufferedReader br = new BufferedReader(is);
			s = br.readLine();
			if (s != null)
				System.out.println("the number "+Double.parseDouble(s));
		} catch (FileNotFoundException ex)
		{
			System.out.println("file not found");
		}
		catch (EOFException ex)
		{
			
		} catch (NumberFormatException ex)
		{
			System.out.println("number format error");
		}
		catch (Exception ex)
		{
			
			ex.printStackTrace();
		}
		
	}

}