好用的Java输入输出流模板

import java.util.*;
import java.io.*;

public class Main{

    static StreamTokenizer st = new StreamTokenizer(new BufferedReader(new InputStreamReader(System.in)));
    static PrintWriter pw = new PrintWriter(new OutputStreamWriter(System.out));
    static int nextInt() throws IOException {
        st.nextToken();
        return (int)st.nval;
    }
    static double nextDouble() throws IOException {
        st.nextToken();
        return st.nval;
    }
    static String nextString() throws IOException {
        st.nextToken();
        return st.sval;
    }

    public static void main(String[] args) throws IOException {
        #输出,就跟使用System.out.print()感觉一模一样
        #pw.print("你想输出的内容");
        #pw.flush();
        #最后别忘了flush，pw会先将要输出的内容保存到内存缓冲区中，最后只通过一次IO输出
    }
}