This value includes all blanks ... length cannot be resolved or is not a field Also be sure to initialize the Java String before you invoke the length() method, or else a NullPointer runtime exception ...

Java strings are created and manipulated through the string class. Once created, a string is immutable -- its value cannot be changed. A string is sequence of characters. A class is a user-defined ...

In the code example below, you see the immutable String and the mutable StringBuilder class. Each is being passed as a parameter to a method. Knowing that Java only passes by value, what do you ...