java - 无限 while 循环以及读取文件时出现问题

Question

程序说明:

I have this program of mine which is intended to read every word from a file (large one) and then check if the words already exist in a word-array which keeps the unique words or not. If not, add the word to the end of the array, and add +1 to a uniquewordcounter as well as to a counting array at the same index.. If the word already is located somewhere in the array, it should locate the index-number, and on the same index-number in a counting-array increase the value with 1. This it should do while the file has more content. I am not allowed to use HashMaps either.

然而，当我的程序要读取文件时，它会进入无限的 while 循环，并且唯一单词的计数眨眼间就轻松超过 100.000，但它最多应该为 5000...

这是代码:

class Oblig3A{
    public static void main(String[]args){

    OrdAnalyse oa = new OrdAnalyse();
    String filArgs=args[0];
    oa.analyseMetode(filArgs);
    }
}

class OrdAnalyse{
    void analyseMetode(String filArgs){

    //Begins with naming all of the needed variables
    Scanner input, innfil;
    String[] ord, fortelling;
    int[] antall;
    int antUnikeOrd, totalSum;
    PrintWriter utfil;

    //Declaring most of them.
    input=new Scanner(System.in);
    ord=new String[5000];
    antall=new int[5000];
    antUnikeOrd=0;
    totalSum=0;
    try{
        innfil=new Scanner(new File(filArgs));



    //The problem is located here somewhere:
        while(innfil.hasNext()){
        fortelling=innfil.nextLine().toLowerCase().split(" ");

        ord[0]=innfil.next().toLowerCase();

            for(int i=0; i<fortelling.length; i++){
            for(int j=0; j<5000; j++){
            if(fortelling[i].equals(ord[j])){
                antall[j]+=1;
                System.out.print("heo");
            }else{
                ord[j]=fortelling[i];
                antall[j]+=1;
                antUnikeOrd+=1;
                }
            System.out.println(ord.length);
            System.out.println(antUnikeOrd);

            }
        }
        }
        innfil.close();
    }catch(Exception e){
        e.printStackTrace();
    }

   // Here the program will write all the info acquired above into a file called Oppsummering.txt, which it will make.
    try{
        utfil=new PrintWriter(new File("Oppsummering.txt"));

        for(int i=0; i<antall.length; i++){
        totalSum+=antall[i];
        }

        utfil.println("Antall ord lest: " +totalSum+ " og antall unike ord: "+antUnikeOrd);

        for(int i=0; i<ord.length; i++){

        utfil.println(ord[i]+("  ")+antall[i]);
        }
        utfil.close();
    }catch(Exception e){
        e.printStackTrace();
    }
    }
}

Answer 1

/The problem is located here somewhere:
    Scanner keepTrack=infill.next();
    while(keepTrack.next().Equals(null)){
    fortelling=innfil.nextLine().toLowerCase().split(" ");

    ord[0]=innfil.next().toLowerCase();

        for(int i=0; i<fortelling.length; i++){
        for(int j=0; j<5000; j++){
        if(fortelling[i].equals(ord[j])){
            antall[j]+=1;
            System.out.print("heo");
        }else{
            ord[j]=fortelling[i];
            antall[j]+=1;
            antUnikeOrd+=1;
            }
        System.out.println(ord.length);
        System.out.println(antUnikeOrd);

        }
    }
    infill=infill.next();
    keepTrack=infill;
    }
    innfil.close();
}

试试这个，我不确定它是否有效!

我认为问题在于您仅在一个元素上循环，而不是在所有元素上循环。

祝你好运!!!