Two types of system software are which of the following?
A. application software and tools that enable you to perform maintenance tasks
B. web browsers and application software
C. operating systems and tools that enable you to perform maintenance tasks
D. operating systems and web browsers
Answer: C
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Answer the following statements true (T) or false (F)
1. You cannot assign a value to a wrapper class object. 2. StringBuilder objects are not immutable. 3. If a string has more than one character used as a delimiter, you must write a loop to determine the tokens, one for each delimiter character. 4. The String class's valueOf method accepts a string representation as an argument and returns its equivalent integer value. 5.When working with the String and StringBuilder classes' getChars method, the character at the start position is included in the substring but the character at the end position is not included.
Which of the following statements is true?
a. Strings can be used in a switch statement’s controlling expression and in its case labels. b. Strings can be used in a switch statement’s controlling expression but not in its case labels. c. Strings cannot be used in a switch statement’s controlling expression but can be used in its case labels. d. Strings cannot be used in a switch statement’s controlling expression and cannot be used in its case labels.
Match each letter with the statement that best defines it.
A. Text following the name of the tag in the code you typed B. Specifies the character encoding C. The way each browser displays a Web page D. Involves opening the Web page in one or more user agents and examining the result E. Text elements in your Web page code that user agents ignore
Many email clients enable you to mark an incoming message with a(n) _________________________ icon, indicating that the message requires your attention.
Fill in the blank(s) with the appropriate word(s).