比较来自两个不同字符串的 Char 的问题

Question

The program is suppossed to be a glossary test with 10 different words. My code is working except one thing, and that being a function allowing the user to get an output saying "almost correct, the correct answer is ..." if some of the char is correct.

For example; Correct answer is house.

user writes: housq -> output = "Almost correct, the correct answer is..."

user writes hsasa -> output = "Wrong, the correct answer is..."

My plan is to put the "Almost correct" through int count, in a span between the values 1-3.

But with this loop: It only counts correctly spelled words, for example

Correct word is house.

input -> house -> count=5

input -> housa -> count=0.

I'm new to Java and I apologize to everyone for potential bad code.

     Scanner scanner = new Scanner(System.in);
    String inputString = "";
    String[] eng = {"car", "house", "run", "blue", "bake", "jump", "swim", "moon", "road", "kind"};
    String[] swe = {"bil", "hus", "springa", "blå", "baka", "hoppa", "simma", "måne", "väg", "snäll"};
    int result = 0;
    int word = 0;
    int count = 0;
    int low = 2;
    int high = 3;

    for (int i = 0; i < swe.length; i++) {
        System.out.println(swe[i]);
        inputString = scanner.nextLine().trim();

        if (inputString.equalsIgnoreCase(eng[i])) {
            word++;
            result++;
            System.out.println("Korrekt! " + result + " rätt av " + word + " ord.");

            for (int j = 0; j < inputString.length(); j++) {
                if (inputString.charAt(j) == eng[i].charAt(j)) {
                    ++count;

                }
            }
                      if(count >= low){
                    System.out.println("Nästan rätt, korrekt svar är " + eng[i]);
                    word++;
                }


                if(count > low && count < high){
                    System.out.println("Nästan rätt, korrekt svar är " + eng[i]);
                    word++;
                }
        if (count == 0) {
            System.out.println("fel, rätt svar är " + eng[i]);
            word++;
        }
        System.out.println(count);

        if (inputString.equalsIgnoreCase("Q")) {
            System.out.println("Du svarade på totalt " + word + " glosor och hade " + result + " rätt. Välkommen åter!");

            System.exit(0);

        }

        count = 0;
    }
}

}}

Answer 1

I tried with your this code fragment like this and i get the output correct. Here is what i have tried

String inputString = "housr";
        String eng = "house";
        int count = 0;
        for(int j=0; j < inputString.length(); j++) {
            if(inputString.charAt(j) == eng.charAt(j)){
            ++count;
           }}
        System.out.println(count);

I got output as 4

And what are you trying, please paste your logic and the data also

Answer 2

Problem is with your if condition

if (inputString.equalsIgnoreCase(eng[i]))

it checks for equals condition, if both your input string and eng[i] are equal then only your code executes and in your case your input in housq and you never find that word in eng array it skips the for loop and count will be your initialized value i;e, 0

Is there any specific reason you are using that if condition

And at this line

if (inputString.charAt(j) == eng[i].charAt(j))

If your input string size and eng[i] string size is not equal than you will get StringIndexOutOfBoundsException exception .

With slight changes in your code i can make it work to get your desired output

Scanner scanner = new Scanner(System.in);
        String inputString = "";
        String[] eng = {"car", "house", "run", "blue", "bake", "jump", "swim", "moon", "road", "kind"};
        String[] swe = {"bil", "hus", "springa", "blå", "baka", "hoppa", "simma", "måne", "väg", "snäll"};
        int result = 0;
        int word = 0;
        int count = 0;
        int low = 2;
        int high = 3;

        for (int i = 0; i < swe.length; i++) {
            System.out.println(swe[i]);
            inputString = scanner.nextLine().trim();
            if (inputString.equalsIgnoreCase(eng[i])) {
                word++;
                result++;
                System.out.println("Korrekt! " + result + " rätt av " + word + " ord.");
            }


            if(inputString.length() == eng[i].length()){

                for (int j = 0; j < inputString.length(); j++) {
                    if (inputString.charAt(j) == eng[i].charAt(j)) {
                        ++count;

                    }
                }
            }
                          if(count >= low){
                        System.out.println("Nästan rätt, korrekt svar är " + eng[i]);
                        word++;
                    }


                    if(count > low && count < high){
                        System.out.println("Nästan rätt, korrekt svar är " + eng[i]);
                        word++;
                    }
            if (count == 0) {
                System.out.println("fel, rätt svar är " + eng[i]);
                word++;
            }
            System.out.println(count);

            if (inputString.equalsIgnoreCase("Q")) {
                System.out.println("Du svarade på totalt " + word + " glosor och hade " + result + " rätt. Välkommen åter!");

                System.exit(0);

            }

            count = 0;
        }
    }

Here my input is housq

Output i got is

fel, rätt svar är car
0
Nästan rätt, korrekt svar är house
4
fel, rätt svar är run
0
fel, rätt svar är blue
0
fel, rätt svar är bake
0
fel, rätt svar är jump
0
fel, rätt svar är swim
0
fel, rätt svar är moon
0
fel, rätt svar är road
0
fel, rätt svar är kind
0

Answer 3

public static void spel() {
    Scanner scanner = new Scanner(System.in);
    String inputString = "";
    String[] eng = {"car", "house", "run", "blue", "bake", "jump", "swim", "moon", "road", "kind"};
    String[] swe = {"bil", "hus", "springa", "blå", "baka", "hoppa", "simma", "måne", "väg", "snäll"};
    int result = 0;
    int word = 0;
    int count = 0;
    int low = 2;
    int high = 3;

    for (int i = 0; i < swe.length; i++) {
        System.out.println(swe[i]);
        inputString = scanner.nextLine().trim();

        if(inputString.equalsIgnoreCase(eng[i])) {
            word++;
            result++;
            System.out.println("Korrekt! " + result + " rätt av " + word + " ord.");
        }

            for (int j = 0; j < inputString.length(); j++) {
                if (inputString.charAt(j) == eng[i].charAt(j)) {
                    ++count;

                }
            }
                      if(count >= low){
                    System.out.println("Nästan rätt, korrekt svar är " + eng[i]);
                    word++;
                }

        if (count == 0) {
            System.out.println("fel, rätt svar är " + eng[i]);
            word++;
        }
        System.out.println(count);

        if (inputString.equalsIgnoreCase("Q")) {
            System.out.println("Du svarade på totalt " + word + " glosor och hade " + result + " rätt. Välkommen åter!");

            System.exit(0);

        }

        count = 0;

}

}}

With this updated code. I get the correct answer when most of the Char is correct. For example housa = 4 -> "Almost correct...."

But i still have the problem when difference in size in inputString and eng[i].length. And also when the inputString is the correct answer both "Correct message" and "Almost" shows..