Exam 14: Strings, Characters and Regular Expressions

How many String objects are instantiated by the following code segment (not including the literals)? String s1, output; S1 = "hello"; Output = "\nThe string reversed is: " ; For (int i = s1.length() - 1; i >= 0; i--) Output += s1.charAt(i) + " " ;

Consider the Java segment: String line1 = new String("c = 1 + 2 + 3") ; StringTokenizer tok = new StringTokenizer(line1); Int count = tok.countTokens(); The value of count is ________.

Which of the following creates the string of the numbers from 1 to 1000 most efficiently?

Consider the String below: String r = "a toyota"; Which of the following will create the String r1 = "a TOYOTa"?

Which of the following will create a String different from the other three?

String objects are immutable. This means they ________.