[Solved] Check the characters of a string

Question

For your example it would be something like

public boolean isValid(String h) 
{
    return h.substring(1).matches("^[A-H0-9]+$");  
}

Accepted Answer

For your example it would be something like

public boolean isValid(String h) 
{
    return h.substring(1).matches("^[A-H0-9]+$");  
}