LineNumberReader方法

package test;


import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.LineNumberReader;
import java.math.BigDecimal;
import java.nio.channels.NonReadableChannelException;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.*;

import privateclass.MyBufferedReader;

public class Main {

	private static final String space_operator = " ";
	private static final double pi = Math.PI;
	private static final String LINE_SEPARATOR = System.getProperty("line.separator");
	public static void main(String[] args) throws Exception {

		FileReader fileReader = new FileReader("Myheat.txt");
		
		LineNumberReader lineNumberReader = new LineNumberReader(fileReader);
		
		String line = null;
		while((line = lineNumberReader.readLine()) != null)
		{
			System.out.println(lineNumberReader.getLineNumber() + ":" + line);
		}
		
		lineNumberReader.close();
		
	}
}