Java快速输入输出的实现

在Java编程中，我们经常需要从标准输入读取数据，或者将结果输出到标准输出。为了提高输入输出的效率，我们可以使用快速输入输出的方法。下面是一个示例类Read，它提供了一系列方法来实现快速的输入输出操作。

import java.io.*;class Read{BufferedReader bf;StringTokenizer st;BufferedWriter bw;public Read(){bf=new BufferedReader(new InputStreamReader(System.in));st=new StringTokenizer("");bw=new BufferedWriter(new OutputStreamWriter(System.out));}public String nextLine() throws IOException{return bf.readLine();}public String next() throws IOException{while(!st.hasMoreTokens()){st=new StringTokenizer(bf.readLine());}return st.nextToken();}public char nextChar() throws IOException{return next().charAt(0);}public int nextInt() throws IOException{return Integer.parseInt(next());}public long nextLong() throws IOException{return Long.parseLong(next());}public double nextDouble() throws IOException{return Double.parseDouble(next());}public float nextFloat() throws IOException{return Float.parseFloat(next());}public byte nextByte() throws IOException{return Byte.parseByte(next());}public short nextShort() throws IOException{return Short.parseShort(next());}public BigInteger nextBigInteger() throws IOException{return new BigInteger(next());}public void println(int a) throws IOException{bw.write(String.valueOf(a));bw.newLine();return;}public void print(int a) throws IOException{bw.write(String.valueOf(a));return;}public void println(String a) throws IOException{bw.write(a);bw.newLine();return;}public void print(String a) throws IOException{bw.write(a);return;}public void println(long a) throws IOException{bw.write(String.valueOf(a));bw.newLine();return;}public void print(long a) throws IOException{bw.write(String.valueOf(a));return;}public void println(double a) throws IOException{bw.write(String.valueOf(a));bw.newLine();return;}public void print(double a) throws IOException{bw.write(String.valueOf(a));return;}public void print(BigInteger a) throws IOException{bw.write(a.toString());return;}public void print(char a) throws IOException{bw.write(String.valueOf(a));return;}public void println(char a) throws IOException{bw.write(String.valueOf(a));bw.newLine();return;}public void close() throws IOException{bf.close();bw.close();}
}public class Main {public static void main(String[] args) throws IOException {Read reader = new Read();// 读取一个整数int n = reader.nextInt();// 读取一个字符串String s = reader.next();// 输出结果reader.println("输入的整数是：" + n);reader.println("输入的字符串是：" + s);// 关闭输入输出流reader.close();}
}