Replace all

Question

Hi there,
i got this codes online for replacing a word in textarea . The problem is it only replace the first word it match, while other same word still remain un-replace.how to modify it so that it can replace all the particular words that i wantto replace in the textarea.
Document doc;
doc=text2.getDocument();
SimpleAttributeSet set= new SimpleAttributeSet();
String str1 = JOptionPane.showInputDialog(null,"Enter the word to be replace:","replace",JOptionPane.QUESTION_MESSAGE);
String str2= JOptionPane.showInputDialog(null," Replace the word with :","replace",JOptionPane.QUESTION_MESSAGE);
int index=0;
if(str1!="" && str2!="")
try{          
index=text2.getText().indexOf(str1);
doc.remove(index,str1.length());
doc.insertString(index,str2,set);
}catch(BadLocationException b){
JOptionPane.showMessageDialog(null," Word not found !","Not Found",JOptionPane.ERROR_MESSAGE);
}

Answer 1

Sorry, hit the post button too soon
Document doc = text2.getDocument();
String replaceThis = JOptionPane.showInputDialog(null,"Enter the word to be replace:","replace",JOptionPane.QUESTION_MESSAGE);
String replaceWith = JOptionPane.showInputDialog(null," Replace the word with :","replace",JOptionPane.QUESTION_MESSAGE);
SimpleAttributeSet set= new SimpleAttributeSet();
if(!replaceThis.equals("") && !replaceWith.equals(""))
  if(text2.getText().indexOf(replaceThis) == -1)
     JOptionPane.showMessageDialog(null," Word not found !","Not Found",JOptionPane.ERROR_MESSAGE);
  else
    while(text2.getText().indexOf(replaceThis) != -1)
      try
        int index=text2.getText().indexOf(replaceThis);
        doc.remove(index,replaceThis.length());
        doc.insertString(index,replaceWith,set);
      catch(BadLocationException e)
        // should not happen
        e.printStackTrace();
}