java读取从键盘输入的字符

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
public class test {
    public static void main(String[] args) {
        BufferedReader in=new BufferedReader(new InputStreamReader(System.in));
        try {
            String h=in.readLine();
        } catch (IOException e) {
        e.printStackTrace();
        }
    }
}