Phone formated

String phone='(987 654-3210';

if(phone.contains(' ')||phone.contains('-')|| phone.contains('(') || phone.contains(')')){
String Updphone;
if(phone.contains('-')){
String Updphone1=phone.replace('-','');
Updphone=Updphone1;
System.debug('Updated Phone is1 '+Updphone);
}
if(Updphone.contains('(')){
String Updphone2=Updphone.replace('(','');
Updphone=Updphone2;
System.debug('Updated Phone is 2'+Updphone);
}
if(Updphone.contains(')')){
String Updphone3=Updphone.replace(')','');
Updphone=Updphone3;
System.debug('Updated Phone is3 '+Updphone);
}
if(Updphone.contains(' ')){
String Updphone4=Updphone.replace(' ','');
Updphone=Updphone4;
System.debug('Updated Phone is4 '+Updphone);
}
System.debug('Updated Phone is '+Updphone);
}