Question

我的2d阵列有一个问题，它没有正确输出，所以程序运行正常，但是当我选择案例4查看水平座位图水平输出到许多x而不是正确的位置。如果有人能指出我的方向会很棒！

public static void viewSeatingChartVertical(boolean seat[]){
  for(int  i = 0; i < 10; ++i){
     for(int j = 0; j < 3; ++j){
        if(seat[((j + 1) + (i * 3)) - 1])
           System.out.print("x ");
        else
           System.out.print("o ");
        }
        System.out.println();
     } 
}

public static void viewSeatingChartHorizontal(boolean seat[]){
              int [][] twoDim = new int [3][10];

              int a = (twoDim.length);
              int b = (twoDim[0].length);   

              for(int i = 0; i < a; i++){ 
              for(int j = 0; j < b; j++) { 
              int x = 0; 
              twoDim[i][j] = x;

           if(seat[((j + 1) + (i * 3)) - 1])
           System.out.print("x ");
           else
           System.out.print("o ");
        }
        System.out.println();
        }
       }   


 public static void main(String args[]){

  java.util.Scanner input = new java.util.Scanner(System.in);// if the system doesnt know the Scanner function it then looks to import it

  boolean seating[] = new boolean[30];//declare the amount of seats available on the plane in an array

  //display list of options - saving space make easier to read on smaller screen    
System.out.println("Please choose an option:");
System.out.println("1 for “first class”");
System.out.println("2 for “economy”");
System.out.println("3 to view seating chart");
System.out.println("4 to view seating horizontally chart");
System.out.println("0 to exit");
System.out.print("? ");

  while(true){                                                                                          //loop while valid
     int mOpt = input.nextInt();                                                        //mOpt Menu Option - validate number entered, must be 0-4
        switch (mOpt){
        case 0: System.exit(0);
          break;                                                                                        //system exit

        case 1:                                                                                         // first class seats
        {
        System.out.print("Which seat would you like (1-9)\n");
        int fcseat = input.nextInt();
           if(fcseat > 0 && fcseat <10){
              if(seating[fcseat - 1]){
              System.out.print("That seat is taken.\n");
              }
              else{
              seating[fcseat - 1] = true;
              System.out.print("Seat number " + fcseat + " was assigned.\n");
              }
           }
        }
        break;

        case 2:                                                                                         // economic seats 
        {
        System.out.print("Which seat would you like (10-30)\n");
        int econSeat = input.nextInt();
           if(econSeat >= 10 && econSeat <= 30){                                                                    // HAD 31 NOT 30. SMH
              if(seating[econSeat - 1]){
              System.out.print("That seat is taken.\n");
              }
              else{
              seating[econSeat - 1] = true;
              System.out.print("Seat number " + econSeat + " was assigned.\n");
              }
            }
        }
        break;

        case 3:                                                                                         //printout of available seats vertically
        {
        viewSeatingChartVertical(seating);
        }
        break;

        case 4:                                                                                         //printout of available seats horizontally
        {
        viewSeatingChartHorizontal(seating);
        }
        break;

        default:                                                                                        //wrong format or number please try again
        System.out.print("Sorry, Option not recognized, please Try again.\n");
   }      
  }
 }
}

Answer 1

您正在混合平面上的行和列，屏幕上有行和列。

你的横向输出真的太复杂了。它应该与垂直输出一样简单。关键是复制垂直输出中的代码，但反转两个for语句。

for(int j = 0; j < 3; ++j) {
  for(int i = 0; i < 10; ++i) {

它应该神奇地工作。

好吧，差不多工作了。这将翻转飞机的左右两侧。对第一个循环的一个小改动也将解决这个问题。留给学生。

java飞机座位图表阵列

1 个答案: