java - 在java程序中读取两个不同的字符

Question

如何读取两个不同的字符在程序中..

我阅读了 x，但是在阅读选择时它显示运行时输入不匹配错误..

public static void main(String ar[]) throws IOException{
    char x,choice;
    int temp,spoilt=0;
    int count[]=new int[5];
    DataInputStream dis=new DataInputStream(System.in);
    Scanner sc=new Scanner(System.in);
    do{
        System.out.print("Enter your vote(1 to 5):");
        x=(char)sc.nextInt();
        temp=Character.getNumericValue(x);
        if(temp>=1&&temp<=5){
            count[temp-1]++;
        }else{
          spoilt++;
        }
        System.out.print("Do you want to continue voting..\n");
        System.out.print("Press Y or N:");
        choice=(char)sc.nextInt();
        System.out.println("   "+ch);
    }while(choice=='Y'||choice=='y');
    for(int i=0;i<count.length;i++)
        System.out.print("Number of votes by canditate"+(i+1)+""+count[i]+"\n");
    System.out.print("Spoilt votes:"+spoilt);
}

Answer 1

为了读取一个字符，请简单地尝试:reader.next().charAt(0)