拜托会的帮帮忙....

mickeykhor90

我用了Iterator但是在notepad却不能跳去下一行

出来是这样：

[Ben, Emelia, Linda, Orlando, Romeo, Ruth, Watson]

我要的是这样：
Ben
Emelia
linda
orlando
romeo
ruth
watson



import java.util.*;
import java.io.*;

public class StudentAcc
{

public static void main(String [] args){

TreeSet<String>currAccs = new TreeSet<String>();

TreeSet<String>oldAccs = new TreeSet<String>();

TreeSet<String>gradAccs = new TreeSet<String>();

TreeSet<String>newAccs = new TreeSet<String>();



try

{

readAccounts("currAccounts.txt",currAccs);

readAccounts("oldAccounts.txt",oldAccs);



gradAccs.addAll(oldAccs);

gradAccs.removeAll(currAccs);

newAccs.addAll(currAccs);

newAccs.removeAll(oldAccs);


}

catch(IOException ioe){

System.out.println("Cannot open file");

System.exit(1);

}

FileOutputStream out1;

PrintStream p1;

FileOutputStream out2;

PrintStream p2;

try

{

out1 = new FileOutputStream("gradAccounts.txt");

out2 = new FileOutputStream("newAccounts.txt");



p1 = new PrintStream(out1);

p2 = new PrintStream(out2);

p1.println(gradAccs);

p2.println(newAccs);

p1.close();

p2.close();

}

catch (Exception A)

{

System.out.println("Error writing to file");

}



System.out.println("Graduated Students");

System.out.println("-------------------");

Iterator iter = gradAccs.iterator();

while (iter.hasNext())

{


System.out.println(iter.next()+" ");

}



System.out.println();

System.out.println("New Students");

System.out.println("-------------------");

Iterator iter2 = newAccs.iterator();

while (iter2.hasNext())

{


System.out.println(iter2.next()+" ");

}

}
谁可以帮帮忙？？？？？？？？？？？？？？非常紧急

mrhaha80

try to use this :

str = "\n"
for new line

宅男-兜着走

回复 2# mrhaha80

没用的。