Question

对不起，但是这个节目hacienod java eclipse luna和mars，问题是要有＆＃34; lunes＆＃34;等等，但一旦我插入品牌我109次。我需要帮助。

import java.util.Scanner;
public class Dias {

public static void main(String[] args) {
    // TODO Auto-generated method stub

    Scanner Scanner= new Scanner(System.in);
    int car=0;
    int repl=0;
    int repm=0;
    int repi=0;
    int repj=0;
    int repv=0;
    int reps=0;
    int repd=0;
    int i;

    do {
        System.out.println("introduzca caracteres");
    car = Scanner.next().charAt(0);
    if(car == 'l'){ 

         System.out.println("lunes");
         repl+='l';
    }else {
        if (car=='m'){
            System.out.println("martes");
            repm+='m';
        } else {
        if(car == 'i'){         
            System.out.println("miercoles");
            repi+='i';
        } else {
        if(car=='j'){
            System.out.println("jueves");
            repj+='j';
        }
            else {
                if(car=='v'){
            System.out.println("viernes");
            repv+='v';
                }
                else {
                    if(car=='s'){
                    System.out.println("sabado");   
                    reps+='s';
                }
                    else {
                        if(car =='d'){
                            System.out.println("domingo");
                            repd+='d';
                        }
                        else {
                             if(car !='l' || car !='m' || car !='i' || car !='j'|| car !='v' || car !='s' || car !='d'){

                                    System.out.println("ERROR");
                                    }
                        }



                    }
                }
            }

        }
        }
    }
    }


while(car !='*');
    System.out.println("*");

    System.out.println("veces repetidas de lunes:" +repl );
    System.out.println("veces repetidas de martes:" +repm );
    System.out.println("veces repetidas de miercoles:" +repi);
    System.out.println("veces repetidas de jueves:" +repj );
    System.out.println("veces repetidas de viernes:" +repv );
    System.out.println("veces repetidas de sabado:" +reps );
    System.out.println("veces repetidas de domingo" +repd );
    }
}

Answer 1

它将在您的变量声明

上

char car;

Scanner.next().charAt(0);会为您提供char，并且您正在与if-else中的角色进行比较。

在你的上一个else

if (car != 'l' && car != 'm' && car != 'i' && car != 'j' && car != 'v' && car != 's' && car != 'd' && car != '*') {
    System.out.println("ERROR");
}

Answer 2

我希望我能正确地解释你的问题。我不太清楚。根据我收集的内容，您希望每次将这些特定变量的计数增加1。如果我是正确的，那么代码中的问题就很清楚了。你写道：

repl+='l';

这里它将为角色添加ASCII十进制表示＆＃39; l＆＃39;到变量repl。＆＃39; l＆＃39;的ASCII代码是108.要纠正错误，您只需将所有类似的代码更改为以下内容：

repl ++;

以下是包含更改的完整代码：

import java.util.Scanner;

public class Dias {

    public static void main(String[] args) {
        // TODO Auto-generated method stub

        Scanner Scanner = new Scanner(System.in);
        int car = 0;
        int repl = 0;
        int repm = 0;
        int repi = 0;
        int repj = 0;
        int repv = 0;
        int reps = 0;
        int repd = 0;
        int i;

        do {
            System.out.println("introduzca caracteres");
            car = Scanner.next().charAt(0);
            if (car == 'l') {

                System.out.println("lunes");
                repl++;
            } else {
                if (car == 'm') {
                    System.out.println("martes");
                    repm++;
                } else {
                    if (car == 'i') {
                        System.out.println("miercoles");
                        repi++;
                    } else {
                        if (car == 'j') {
                            System.out.println("jueves");
                            repj++;
                        } else {
                            if (car == 'v') {
                                System.out.println("viernes");
                                repv++;
                            } else {
                                if (car == 's') {
                                    System.out.println("sabado");
                                    reps++;
                                } else {
                                    if (car == 'd') {
                                        System.out.println("domingo");
                                        repd++;
                                    } else {
                                        if (car != 'l' || car != 'm'
                                                || car != 'i' || car != 'j'
                                                || car != 'v' || car != 's'
                                                || car != 'd') {

                                            System.out.println("ERROR");
                                        }
                                    }

                                }
                            }
                        }

                    }
                }
            }
        }

        while (car != '*');
        System.out.println("*");

        System.out.println("veces repetidas de lunes:" + repl);
        System.out.println("veces repetidas de martes:" + repm);
        System.out.println("veces repetidas de miercoles:" + repi);
        System.out.println("veces repetidas de jueves:" + repj);
        System.out.println("veces repetidas de viernes:" + repv);
        System.out.println("veces repetidas de sabado:" + reps);
        System.out.println("veces repetidas de domingo" + repd);
    }
}

Java简单算术

2 个答案: