Change pattern of an existing pattern object?

Is there anyway that i could reuse an existing pattern object and just change the pattern without having to create a whole new pattern object by compiling it? Plus i am getting an error variable p might not have been initialized :confused:

Code:

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import java.util.*;
 import java.util.regex.Pattern;
 import java.util.regex.Matcher; 

 public class X{
  public static void main(String[] args){
 
  String flavors = new String("marshmellowipeanutbutter  i  rockyroad");
  Pattern p = p.compile("\\s*i\\s*");
  // want to keep the same pattern object just change the pattern
  Scanner s = new Scanner(flavors); //.useDelimiter("\\s*i\\s*");
  Matcher m = p.matcher(flavors);
  if(m.matches()){
    while(s.hasNext(p)){
    System.out.println(s.next());
    }
  }
  }
 }

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Ok now im not getting a pattern match. :confused:

Code:

---

import java.util.*;
 import java.util.regex.Pattern;
 import java.util.regex.Matcher; 

 public class X{
  public static void main(String[] args){
 
  String flavors = new String("marshmellowipeanutbutter  i  rockyroad");
  Pattern p = null;
  p = p.compile("\\s*i\\s*");
  Scanner s = new Scanner(flavors); //.useDelimiter("\\s*i\\s*");
  Matcher m = p.matcher(flavors);
  if(m.matches()){
    while(s.hasNext(p)){
    System.out.println(s.next());
    }
  }
  }
 }

---

Quote:

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Pattern p = p.compile("\\s*i\\s*");

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You mean Pattern.compile, that's the reason for the uninitialized error.

And no, a compiled pattern is compiled to Java bytecode and can not be modified. Doing so would be far too complex and unreliable. You have to completely recompile it.

Quote:

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posted by CornedBee

You mean Pattern.compile, that's the reason for the uninitialized error.

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Der. How dumb of me. :blush: Thanks for the help. :thumb: