列出一个文件的内容（带行号）——《Thinking in Java》随笔029

//: TestEOF.java
package c10;

import java.io.FileInputStream;
import java.io.InputStreamReader;

/**
*    @time:         上午9:55:40
*    @date:         2017年4月30日
*    @auther:    skyfffire
*    @version:    v0.1
*/
public class TestEOF {
    public static void main(String[] args) {
        try {
            String path = "./src/c10/TestEOF.java";
            String encoding = "UTF-8";
            
            InputStreamReader isr = new InputStreamReader(
                    new FileInputStream(path), encoding);
            int c = 0;
            int lineNumber = 1;
            
            System.out.format("%-4d| ", lineNumber++);
            while ( (c = isr.read()) != -1) {
                System.out.print((char) c);
                
                if (c == '\n') {
                    System.out.format("%-4d| ", lineNumber++);
                }
            }
            
            isr.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}

///: