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Multithreaded File Reading in Java
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import java.io.*; | |
import java.lang.*; | |
class MultiThreadedFileRead extends Thread | |
{ | |
InputStream in; | |
MultiThreadedFileRead(String fname) throws Exception | |
{ | |
in=new FileInputStream(fname); | |
this.start(); | |
} | |
public void run() | |
{ | |
int i=0; | |
while(i!=-1) | |
{ | |
try | |
{ | |
i=in.read(); | |
System.out.print((char)i); | |
}catch(Exception e){} | |
} | |
try | |
{ | |
in.close(); | |
}catch(Exception e){} | |
} | |
public static void main(String a[]) throws Exception | |
{ | |
int n=2; | |
System.out.print("Enter the number of files : "); | |
BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); | |
try | |
{ | |
n=Integer.parseInt(br.readLine()); | |
}catch(Exception e){} | |
MultiThreadedFileRead fr[]=new MultiThreadedFileRead[n]; | |
long tim; | |
tim=System.currentTimeMillis(); | |
for(int i=0;i<n;i++) | |
fr[i]=new MultiThreadedFileRead(a[i]); | |
for(int i=0;i<n;i++) | |
{ | |
try | |
{ | |
fr[i].join(); | |
}catch(Exception e){} | |
} | |
System.out.println("Time Required : "+(System.currentTimeMillis()-tim)+" miliseconds."); | |
} | |
} |
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