代码量 ：200行
博客量 ：两篇
了解到的新知识：对上次数组课堂练习的一个升级：
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.math.BigInteger;
import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Sz1 {
private final int STOP = -1;
private final int SUSPEND = 0;
private final int RUNNING = 1;
private int status = 1;
private long count = 0;
@SuppressWarnings("deprecation")
public static void main(String[] args) throws IOException, InterruptedException {
// TODO Auto-generated method stub
Scanner sc =new Scanner(System.in);
Thread thread = new Thread();
BigInteger TempNum=new BigInteger("0");
BigInteger Big0=new BigInteger("0");
BigInteger Max=new BigInteger("0");
@SuppressWarnings("unused")
String subway_1=subway_1("C:/D/shuzu.txt");
//System.out.println(subway_1);
long num=0;
long num1=0;
for(int i=0;i<number.length;i++) {
boolean flag=Isnumber(number[i]);
if(flag==true) {
System.out.println("注意：请输入数值！");
BigInteger BigNum=new BigInteger(number[i]);
TempNum=TempNum.add(BigNum);
int is=TempNum.compareTo(Big0);
if(is==-1) {
TempNum=new BigInteger("0");
}else {
num++;
if(num>(0.5*number.length)) {
System.out.println("你真厉害，到底了哦！");
break;
}
int is2=TempNum.compareTo(Max);
if(is2!=-1) {
Max=TempNum;
num1=i+1;
}
}
System.out.println("读取的"+(i+1)+"个数值："+BigNum);
System.out.println("当前判断子数组开始的数是："+num1);
System.out.println("当前判断子数组的数是："+(i+1));
System.out.println("最大值："+Max);
Thread.sleep(1000);
}
else
System.out.println("输入不为数值！");
}
}
private static String[]number;
private static String subway_1(String file) throws IOException {
// TODO Auto-generated method stub
File f=new File(file);
@SuppressWarnings("resource")
BufferedReader bf=new BufferedReader(new FileReader(f));
/*
String content="";
content=bf.readLine();
int line=Integer.parseInt(content);
content=bf.readLine();
@SuppressWarnings("unused")
int list=Integer.parseInt(content);
content="";
for(int aline=0;aline<line;aline++) {
content=content+bf.readLine();
}
String[] temp = content.split(",");
number=temp;
*/
String content="";
content=bf.readLine();
content=content+content;
String[] temp = content.split(",");
number=temp;
return null;
}
private static boolean Isnumber(String num) {
Pattern pattern = Pattern.compile("-?[0-9]+(.[0-9]+)?");
Matcher isNum = pattern.matcher(num);
if( !isNum.matches() ){
return false;
}
return true;
}
}