package IO;

import org.junit.Test;

import java.io.*;

public class OtherStream {

//从键盘输入字符串，当遇到e或者exit退出，其余情况转换成大写

public static void main(String[] args) {

BufferedReader br = null;

try {

InputStreamReader isr = new InputStreamReader(System.in);

br = new BufferedReader(isr);

while (true){

System.out.println("please input the String: ");

String data = br.readLine();

if("e".equalsIgnoreCase(data) || "exit".equalsIgnoreCase(data)){

System.out.println("end the programme");

break;

}

String upperCase = data.toUpperCase();

System.out.println(upperCase);

}

} catch (IOException e) {

e.printStackTrace();

} finally {

if(br != null){

try {

br.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

//数据流

@Test

public void test(){

DataOutputStream dos = null;

try {

dos = new DataOutputStream(new FileOutputStream("data.txt"));

dos.writeUTF("hason");

dos.flush();

dos.writeInt(23);

dos.flush();

dos.writeBoolean(true);

dos.flush();

} catch (IOException e) {

e.printStackTrace();

} finally {

if(dos != null){

try {

dos.close();

} catch (IOException e) {

e.printStackTrace();

}

}

}

}

}