Question

目前我正在使用这种方法，但输出仅适用于前2位玩家而不是3或4位。

我想知道是什么让这个代码只适用于两个玩家，以及为什么它不会对其余玩家进行排序。此代码中的排序算法现在可以使用了。

public static void questions(String[] question, String[] answer, int n) {

    String[] name = new String[n];  // Player Names 
    int[] playerscore = new int[n]; // Argument for Score
    String[] que = new String[question.length]; //Questions for Loops



        /* --------------------------- For loop for number of players --------------------------- */ 
for (int i = 0; i < n; i++)
{
    playerscore[i] = 0;
    name[i] = JOptionPane.showInputDialog("What is your name player "+ (i+1) +"?");
    JOptionPane.showMessageDialog(null,"Hello : "+ name[i] + " Player number " +(i+1)+ ". I hope your ready to start!");


        /* --------------------------- Loop in Loop for questions --------------------------- */ 
    for (int x=0; x<question.length; x++) {
        que[x] = JOptionPane.showInputDialog(question[x]);
            if(que[x].equals(answer[x]))
                {

                    playerscore[i] = playerscore[i] + 1;

                }

    else {
            JOptionPane.showMessageDialog(null,"Wrong!");
         }

            } // End for loop for Question





// declare array and initialise with random elements

// print it out
for (int y=0; y<size; y++)
{
    System.out.println("\nPlayer: "+(i+1)+ " Name: "+name[i]+" Score:"+playerscore[i]+" out of 5."); 
}
System.out.println();

sort(playerscore);        

// print it out again

for (int y=0; y<size; y++)
{
    System.out.println("\nPlayer: "+(i+1)+ " Name: "+name[i]+" Score:"+playerscore[i]+" out of 5."); 
}
System.out.println();







        /* --------------------------- Loop in Loop for questions --------------------------- */ 



       } // End for loop for player number

          } //End method questions




while (!sorted)
{
   // array potentially sorted 
    sorted = true;

   //traverse array switching ill-ordered pairs
   for (int i=0; i < playerscore.length-1; i++)
   {
        if (playerscore[i] > playerscore [i+1])
        {
          // swap them
          int tmp = playerscore[i+1];
          playerscore[i+1] = playerscore[i];
          playerscore[i] = tmp;
          // array wasn't sorted
          sorted = false;

          // write array so can see whats happening
          write_array(playerscore);

         }
   }
}

}

static void write_array（int [] playerscore） { for（int i = 0; i＆lt; playerscore.length; i ++） { System.out.print（playerscore [i] +“”）; } 的System.out.println（）; }

Answer 1

使用

Arrays.sort( x );

表示String []以及int []。不要自己动手......

java.util.Arrays包含几个sort的定义：这称为重载。你不能通过编写单一的排序方法来做同样的事情。

Answer 2

您是否考虑过使用泛型和Collection API，它上面有一个排序方法。

https://docs.oracle.com/javase/tutorial/collections/interfaces/order.html

无法将String编译为INT

2 个答案: