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  1. package com.example.sendfiletest3; 
  2.  
  3. import android.annotation.SuppressLint;
  4. import android.util.Log;
  5.  
  6. import java.io.BufferedReader;
  7. import java.io.BufferedWriter; 
  8. import java.io.DataInputStream; 
  9. import java.io.DataOutputStream; 
  10. import java.io.File; 
  11. import java.io.FileInputStream; 
  12. import java.io.InputStreamReader;
  13. import java.io.OutputStreamWriter; 
  14. import java.io.PrintWriter; 
  15. import java.net.InetAddress; 
  16. import java.net.Socket; 
  17.  
  18. @SuppressLint("SdCardPath")
  19. public class TCPClient implements Runnable{ 
  20. private static final String serverIP="xx.xxx.xxx.xx"; 
  21. private static final int serverPort = 80; 
  22. private String msg; 
  23. public TCPClient(String msg){ 
  24.            	super(); 
  25.            	this.msg = msg; 
  26. } 
  27. @SuppressWarnings("resource")
  28. @Override 
  29. 	public void run(){ 
  30. 			try{ 
  31.                 InetAddress serverAddr = InetAddress.getByName(serverIP); 
  32.            	    Socket sock = new Socket(serverAddr, serverPort); 
  33.            	    try{ 
  34.                     PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(sock.getOutputStream())), true); 
  35.            	        out.println(msg); 
  36.            	        out.flush();
  37.  
  38.            	        DataInputStream dis = new DataInputStream(new  FileInputStream(new File("/mnt/sdcard/"+msg+".txt"))); 
  39.            	        DataOutputStream dos = new DataOutputStream(sock.getOutputStream()); 
  40.            	        byte[] buf = new byte[1024];  
  41.            	        while(dis.read(buf)>0) 
  42.            	        { 
  43.            	           	    dos.write(buf); 
  44.            	           	    dos.flush(); 
  45.            	        } 
  46.            	        dos.close(); 
  47.            	    } catch(Exception e)	{ 
  48.            	        	e.printStackTrace();           	  
  49.            	    } 
  50.            	    // *********** 새로 추가한 코드입니다 *****************
  51.            	    try {  
  52.                     BufferedReader in = new BufferedReader(new InputStreamReader(sock.getInputStream()));  
  53.                     String str = in.readLine();  
  54.                     Log.d("TCP" ,"C: Received: '" + str + "'");  
  55.  
  56.                     PrintWriter out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(sock.getOutputStream())), true);  
  57.                     Log.d("TCP" ,"Server Received " + str);  
  58.                 } catch (Exception e) {  
  59.                     Log.d("TCP" ,"S: Error");  
  60.                     e.printStackTrace();  
  61.                 }
  62.            	    // *************************************************
  63.            	    finally { 
  64.            	        	sock.close(); 
  65.            	    } 
  66.            	 } catch(Exception e) { 
  67.              e.printStackTrace(); 
  68. 			} 
  69. 		} 
  70. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:19: error: class TCPClient is public, should be declared in a file named TCPClient.java
public class TCPClient implements Runnable{ 
       ^
Main.java:3: error: package android.annotation does not exist
import android.annotation.SuppressLint;
                         ^
Main.java:4: error: package android.util does not exist
import android.util.Log;
                   ^
Main.java:18: error: cannot find symbol
@SuppressLint("SdCardPath")
 ^
  symbol: class SuppressLint
Main.java:54: error: cannot find symbol
                    Log.d("TCP" ,"C: Received: '" + str + "'");  
                    ^
  symbol:   variable Log
  location: class TCPClient
Main.java:57: error: cannot find symbol
                    Log.d("TCP" ,"Server Received " + str);  
                    ^
  symbol:   variable Log
  location: class TCPClient
Main.java:59: error: cannot find symbol
                    Log.d("TCP" ,"S: Error");  
                    ^
  symbol:   variable Log
  location: class TCPClient
7 errors
stdout
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Standard output is empty
https://ideone.com/XCtAHD
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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