我有这样的功能:爪哇 - 问题与阅读文件
public static int checkRank(String lineToCompare){
int rank = 0;
try{
// Open the file that is the first
// command line parameter
FileInputStream fstream = new FileInputStream("ranks.txt");
// Get the object of DataInputStream
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strLine;
//Read File Line By Line
System.out.println("SPOT 0");
while ((strLine = br.readLine()) != null) {
//Compare the line with the line to compare (string)
System.out.println("SPOT 1");
if(strLine.trim().equals(lineToCompare)) {
//I found it! Read the next line...
final String lineAfter = br.readLine();
rank = Integer.parseInt(lineAfter);
System.out.println("SPOT 2");
}else{
rank = 0;
System.out.println("SPOT 3");
}
}
//Close the input stream
in.close();
}catch (Exception e){//Catch exception if any
System.err.println("Error: " + e.getMessage());
}
System.out.println("Username: " + lineToCompare + " | Rank: " + rank);
return rank;
}
我ranks.txt
文件如下:
test1
2
test2
1
控制台输出(以下简称 “SPOT” S只是用于调试) :
[Commands] SPOT 0
[Commands] SPOT 1
[Commands] SPOT 2
[Commands] SPOT 1
[Commands] SPOT 3
[Commands] SPOT 1
[Commands] SPOT 3
[Commands] Username: test1 | Rank: 0
正如你所看到的,如果它工作正常,它会说test1的等级是2.有人可以帮助我确定问题是什么?
什么是'lineToCompare'? – Jeffrey
@Jeffrey,lineToCompare = test1(如在控制台输出中显示的那样)。 – DannyF247
尝试添加一个休息;打印SPOT2后。您在读取“test2”之后将等级设置为0,然后再读取“1”时将等级设置为0。 – ppalasek