java数组和循环的情况

Question

我们收到一个关于制作一个程序的问题，用于输入人名及其性别(n 个数字)并将男孩和女孩存储在两个单独的数组中。我编写了以下代码，但它不接受第二个循环中的姓名和性别。为什么？

import java.io.*;

class arrays
{
    BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

    void main()throws IOException
    {
        String name="";
        System.out.println("enter number of students");
        int n=Integer.parseInt(br.readLine());
        String[] c=new String[n];//5
        String[] b=new String[n];//5
        String[] g=new String[n];//5
        char[] s=new char[n];
        System.out.println("enter the name and gender of "+n+" students");
        int i=0;

        do
        {
            System.out.println("enter the data of "+(i+1)+" student");
            c[i]=br.readLine();
            s[i]=(char)br.read();
            i++;
        }
        while(i<n);

        for(int j=0;j<n;j++)
        {
            if(s[j]=='b'||s[j]=='B')
            {
                System.arraycopy(c,j,b,j,1);
            }
            else if(s[j]=='g'||s[j]=='G')
            {
                System.arraycopy(c,j,g,j,1);
            }
        }
        for(int j=0;j<n;j++)
        {
            System.out.print("boys are:-"+b[j]);
            System.out.println("girls are:-"+g[j]);
        }
    }
}

Answer 1

输入的方式是这里的问题。将 do-while 循环更改为:

do {
        System.out.println("enter the data of " + (i + 1) + " student");
        c[i] = br.readLine();
        s[i] = (char) br.read();            
        br.readLine();       // even a br.read(); would work. Used to read newline
        i++;
   } while (i < n);