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import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class PatternReplaceExmple{
private static Pattern p ;
private static Matcher m ;
public static void setPattern(String str){
p = Pattern.compile(str);
}
public static void setPattern(String str,int i){
p = Pattern.compile(str,i);
}
public static void setMatcher(String str){
m = p.matcher(str);
}
public static String replace(String str){
StringBuffer buf = new StringBuffer();
while(m.find()){
m.appendReplacement(buf,str);
}
m.appendTail(buf);
return buf.toString();
}
}