java - Delete number from the beginning -

I have some strings that start with a number and a white space and I want to remove everything after that whistle. I am

First String:

  1 ABC DF  

What do I need:

  abd def  

second string:

  1 23 asp  

What do I need:

 < Code> 23 abs  

What is the best way to do this in Java? I know that it can be obtained from regular expression and string methods, but the way is the least?

  str = str.replaceFirst ("^ [0- 9] +", " );