java - unable in removing an element using iterator -

i had entered 3 elements using vector , trying remove specific elemnts list unable so.

i getting following error while compiling:

iterator.java:28: error: 'void' type not allowed here {system.out.println(e.printstacktrace());} ^ 1 error

where doing wrong.

  import java.io.*;   import java.util.*;   import java.lang.*;    class iterator   {      public static void main(string[] args)     {   vector<integer> v= new vector<integer>();   //vector<string> v= new vector<string>();   v.addelement(new integer(10));   v.addelement(new integer(20));   v.addelement(new integer(30));   //v.addelement(new string("mayank"));    //v.addelement(new boolean(true));   //enumeration e = v.elements();    iterator = v.iterator();    while(i.hasnext())       {        system.out.println(i.next());        }        try{            v.remove(10);       }       catch(exception e)       {system.out.println(e.printstacktrace());}       //system.out.println("remove error exception");}     while(i.hasnext())       {        system.out.println(i.next());        }        } }  

e.printstacktrace() need. since returns void, have println trying print void doesn't work (and doesn't make sense either).

solution: rid of system.out.println. call e.printstacktrace(). better yet, use logging.

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edit: also, remove integer 10 value, consider doing:

remove(new integer(10)); 

so jvm doesn't think remove parameter represents index position of item wish remove.

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edit 2: note contrary question title, not using iterator remove anything.

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edit 3: removing without using iterator

import java.util.iterator; import java.util.vector;  class hisiterator {    public static void main(string[] args) {       vector<integer> v = new vector<integer>();        v.addelement(new integer(10));       v.addelement(new integer(20));       v.addelement(new integer(30));        iterator<integer> = v.iterator();       while (i.hasnext()) {          system.out.println(i.next());       }       try {          v.remove(new integer(10));       } catch (exception e) {          e.printstacktrace();       }       system.out.println();       = v.iterator();       while (i.hasnext()) {          system.out.println(i.next());       }     } } 

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edit 4: iterator

import java.util.iterator; import java.util.vector;  class hisiterator {    public static void main(string[] args) {       vector<integer> v = new vector<integer>();        v.addelement(new integer(10));       v.addelement(new integer(20));       v.addelement(new integer(30));        iterator<integer> = v.iterator();       while (i.hasnext()) {          integer nexti = i.next();          system.out.println(nexti);          if (nexti.equals(integer.valueof(10))) {             i.remove();          }       }       // try {       // v.remove(new integer(10));       // } catch (exception e) {       // e.printstacktrace();       // }       system.out.println();       = v.iterator();       while (i.hasnext()) {          system.out.println(i.next());       }     } }