this code runs succesfully onnet bean, though it compiled in prompt but
compiler is telling me that it is not checked
import java.io.*;
import java.util.*;
class RandomSelection {
public static void main(String[] args) {
try{
FileInputStream fstream = new FileInputStream("c:\\filea.txt");
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
LineNumberReader ln = new LineNumberReader(br);
int count = 0;
while (ln.readLine() != null){
count++;
}
ln.close();
in.close();
fstream = new FileInputStream("c:\\filea.txt");
in = new DataInputStream(fstream);
br = new BufferedReader(new InputStreamReader(in));
String strLine;
ln = new LineNumberReader(br);
Random mixture = new Random();
HashSet usedNums = new HashSet();
int numberIndex;
String[] see = new String[count];
int i = 0;
while ((strLine = br.readLine()) != null) {
see[i] = strLine;
i = i + 1;
}
for ( i=1; i <=200; i++) {
do{numberIndex = mixture.nextInt(see.length);
}
while(!usedNums.add(numberIndex) );
System.out.println(see[numberIndex]);
}
ln.close();
in.close();
}
catch (Exception e){
System.err.println("Error: " + e.getMessage());
}
}
}