算出number(一行保存一个数字)文件中和最大的连续行数,打印开始结束行号,打印最大的和

import java.io.BufferedReader;

import java.io.File;

import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;

import java.util.HashMap;

import java.util.Map;

public class JFQ_Number {
private static final String FILE_PATH = "/home/lifeix/number";
/**
* @param args
* @throws IOException 
*/
public static void main(String[] args) throws IOException {
// TODO Auto-generated method stub
startNumber();
}

private static void startNumber() throws IOException {
FileInputStream fis = new FileInputStream(new File(FILE_PATH));
BufferedReader br = new BufferedReader(new InputStreamReader(fis));
String line = br.readLine();
int count = 0;
int currentSum = 0;
int startLine = 0;
int endLine = 0;
int lastSum = currentSum;
int tempSum = 0;

while(line != null) {
count++;
int l = Integer.parseInt(line.trim());
if(count <3) {
currentSum += l;
endLine = count;
lastSum = currentSum;
} else {
tempSum = currentSum;
currentSum += l;

if(tempSum < currentSum) {
if(currentSum < l) {
currentSum = l;
startLine = count;
}
if(lastSum < currentSum) {
lastSum = currentSum;
endLine = count;
}
} else {
if(lastSum < tempSum) {
lastSum = tempSum;
}
}

}
line = br.readLine();
}
System.out.println("startLine=" + startLine + ", endLine=" +endLine + ", sumline=" + lastSum);
}

}