import java.io.*;
import java.util.*;
import java.net.*;
public class SocketTest
{
public static void main(String[] args)
{
try
{
Socket s=new Socket("time-A.timefreq.bldrdoc.gov",13);
try
{
InputStream inStream=s.getInputStream();
Scanner in=new Scanner(inStream);
while(in.hasNextLine())
{
String line=in.nextLine();
System.out.println(line);
}
}
finally
{
s.close();
}
}
catch(IOException e)
{
e.printStackTrace();
}
}
}这段代码的try catch语句可不可以写成以下这样:
import java.io.*;
import java.util.*;
import java.net.*;
public class SocketTest
{
public static void main(String[] args)
{
try
{
Socket s=new Socket("time-A.timefreq.bldrdoc.gov",13);
InputStream inStream=s.getInputStream();
Scanner in=new Scanner(inStream);
while(in.hasNextLine())
{
String line=in.nextLine();
System.out.println(line);
}
}
finally
{
s.close();
}
catch(IOException e)
{
e.printStackTrace();
}
}
}
就是省掉一个try语句不知道可以吗?
import java.util.*;
import java.net.*;
public class SocketTest
{
public static void main(String[] args)
{
try
{
Socket s=new Socket("time-A.timefreq.bldrdoc.gov",13);
try
{
InputStream inStream=s.getInputStream();
Scanner in=new Scanner(inStream);
while(in.hasNextLine())
{
String line=in.nextLine();
System.out.println(line);
}
}
finally
{
s.close();
}
}
catch(IOException e)
{
e.printStackTrace();
}
}
}这段代码的try catch语句可不可以写成以下这样:
import java.io.*;
import java.util.*;
import java.net.*;
public class SocketTest
{
public static void main(String[] args)
{
try
{
Socket s=new Socket("time-A.timefreq.bldrdoc.gov",13);
InputStream inStream=s.getInputStream();
Scanner in=new Scanner(inStream);
while(in.hasNextLine())
{
String line=in.nextLine();
System.out.println(line);
}
}
finally
{
s.close();
}
catch(IOException e)
{
e.printStackTrace();
}
}
}
就是省掉一个try语句不知道可以吗?
finally 块必须与 try 或 try/catch 块配合使用
try{
}finally{}
也可以这样
try{
}catch(Exception e){
}finally{}
或者
try{
}catch(Exception e){
}
正确方法见3楼
try
{
Socket s=new Socket("time-A.timefreq.bldrdoc.gov",13);
InputStream inStream=s.getInputStream();
Scanner in=new Scanner(inStream);
while(in.hasNextLine())
{
String line=in.nextLine();
System.out.println(line);
}
}
catch(IOException e)
{
e.printStackTrace();
}
finally
{
s.close();
}
} 这样就 可以了