Java 数组不改变值
您好,如何更改字符数组中索引的值?我尝试了通常的方法数组[][]=”; 但当我打印它时,它仍然显示原始的硬编码数组 这是主要原因Java 数组不改变值,java,arrays,Java,Arrays,您好,如何更改字符数组中索引的值?我尝试了通常的方法数组[][]=”; 但当我打印它时,它仍然显示原始的硬编码数组 这是主要原因 public static void main(String args[]){ int seatChoice = 0,seatCol = 0; String seat, type; char[][] airplane = {{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},{'*
public static void main(String args[]){
int seatChoice = 0,seatCol = 0;
String seat, type;
char[][] airplane = {{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},
{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},
{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},
{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},{'*','*','*','*','*','*'},
{'*','*','*','*','*','*'}};
menu(airplane);
System.out.print("Please input ticket type: ");
type = input.nextLine();
System.out.print("Please input desired seat: ");
seat = input.nextLine();
seatChoice = reservation(seat) - 1;
if(seat.charAt(1) == 'A')
seatCol = 0;
if(seat.charAt(1) == 'B')
seatCol = 1;
if(seat.charAt(1) == 'C')
seatCol = 2;
if(seat.charAt(1) == 'D')
seatCol = 3;
if(seat.charAt(1) == 'E')
seatCol = 4;
if(seat.charAt(1) == 'F')
seatCol = 5;
airplane[seatChoice][seatCol] = 'X';
System.out.println(seatChoice);
System.out.println(seatCol);
System.out.println(airplane[seatChoice][seatCol]);
showSeat(airplane);
}
这些是其他方法
public static int reservation(String seat){
int seatChoice = 0;
seatChoice = Character.getNumericValue(seat.charAt(0));
System.out.println("Your seat has been reserved.");
return seatChoice;
}
public static void showSeat(char[][] airplane){
int rows = 13, seats = 6, numRow = 1;
System.out.println(" A B C D E F ");
System.out.println();
for (int count = 0; count < rows; count++){
System.out.print("ROW " + numRow + " ");
for (int count2 = 0; count2 < seats; count2++){
System.out.print(" " + airplane[rows-1][seats-1] + " ");
}
numRow++;
System.out.println();
}
}
publicstaticint预订(字符串座位){
int seatChoice=0;
seatChoice=Character.getNumericValue(seat.charAt(0));
System.out.println(“您的座位已预订”);
返回座位选择;
}
公共静态void showSeat(char[][]飞机){
int rows=13,席位=6,numRow=1;
系统输出打印号(“A B C D E F”);
System.out.println();
对于(int count=0;count
中行
和座位
的值
System.out.print(" " + airplane[rows-1][seats-1] + " ");
没有变化,它们始终基于int rows=13,seats=6,
尝试使用
count
和count2
这并不是您所要求的,但是一行中的6个if可以替换为seatCol=Character.getNumericValue(seat.charAt(1))-Character.getNumericValue('a');