Exam 7: Characters Strings and the Stringbuilder

The String class ____________________ method is similar to the equals() method. As its name implies, this method ignores case when determining if two String s are equivalent.

In the above code, two strings are evaluated using the equivalency operator. Why can this be a problem, and what other methods are offered by Java for working with characters and strings?

Describe how a programmer would use the two types of Character class methods (those that begin with "is" and those that begin with "to") for testing the values of characters.

The method header of the equals() method within the String class is ____.

A StringBuilder object contains a memory block called a _____, which might or might not contain a string.

StringBuilder greeting = new StringBuilder("Day 1"); Using the above StringBuilder , create a setCharAt() method that will change the "1" to a "2" in the String "Day 1" . Explain how the setCharAt() method operates.

The StringBuffer class is more efficient than the StringBuilder class because it can execute multiple threads during program execution.

Which of the following correctly declares and initializes a String object?