Which of the following method calls can be applied to a String object?
Select 3 options
A. equals (Object) B. equalsIgnoreCase (String) C. prune () D. append () E. intern ()
Correct Options are : A B E
public String intern() Returns a canonical representation for the string object.
A pool of strings, initially empty, is maintained privately by the class String.
When the intern method is invoked, if the pool already contains a string equal to this String object as determined by the equals(Object) method, then the string from the pool is returned.
Otherwise, this String object is added to the pool and a reference to this String object is returned.
For any two strings s and t, s.intern() == t.intern() is true if and only if s.equals(t) is true.
All literal strings and string-valued constant expressions are interned.