File reading

[Amruth Puppala]

My text file would be
textfil1.txt

10000|text|1000|java
10001|text|2001|cpp
10002|abc|2003|java
10002|xyz|2003|java
10000|hello|1000|java
10000|hai|2000|cpp

Hear I need to find the duplicate tokens of 1,3,4 tokens in each line.
If any of the line has same tokes of 1,3,4 then will move that line to some other file.
finally I will have only unique 1,3,4 token line in my file.
out put should be

I won't care about 2nd token watever there.

textfil1.txt

10000|text|1000|java
10001|text|2001|cpp
10002|abc|2003|java
10000|hai|2000|cpp

textfil2.txt

10002|xyz|2003|java
10000|hello|1000|java

Please your inputs would be so much help for me
[ July 31, 2008: Message edited by: Chintu sirivennela ]

[Sandeep Bhandari]

can you give sample input and output for various cases?

[Amruth Puppala]

Thanks for the response.

I have given input file 1st , then two output files how the result should be shown.
[ July 31, 2008: Message edited by: Chintu sirivennela ]

[Deepak Bala]

This looks like homework.

Does this have to do with SCJP at all ?

[Amruth Puppala]

Hi John Meyers,
yes it looks like that but not home work and not exactly specific to SCJP thing but tt would be solved with the features of java5 may be with Scanner class.

As here many ranchares would have very good understanding on Java 5 features , that why I posted .

[venus mark]

some one tell me about read the number files at randomly. I have number of jpg files. i want to read these files one by one

[venus mark]

someone can check these code.I want to copy the files one folder to another folder.

import java.io.File;

import java.io.*;
public class readfile {

public static void main (String[] arg0)throws Exception{
// you could put your directory here
String pathin = "D:\\Novels";


File filein = new File(pathin);
String[] filelist = filein.list();
int lenin = filelist.length;

File dir=new File("C:\\v");

if (filelist.length == 0) {
System.out.println("empty file in the dirc");

}else{
// define a value for reading the file random
for (int j = 0 ; j < lenin ; j++) {
int index = (int)(Math.random()*lenin);
File newfilein = new File( filelist[index]);
boolean copy= newfilein.renameTo(new File(dir, newfilein.getName()));
System.out.println("name= " + newfilein.getName());
// filelist[index] = filelist[lenin -1];
//lenin --;

}

}


}
}