Which of the following statements about regular expressions is true?
a. They are used to match specific character patterns in text.
b. They can be used to replace parts of one string with another, or to split a string.
c. They can be used to validate data to ensure that it’s in a particular format.
d. All of the above statements are true.
d. All of the above statements are true.
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Java supports type inferencing with the <> notation in statements that declare and create generic type variables and objects. For example, the following line:
```
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Firewalls are installed on a network to protect a company's internal network from dangers on the Internet
a. true b. false
A base type is one of _____ fundamental data types not defined in terms of other types.
A. 15 B. 19 C. 25 D. 29
A class’s attributes are specified by the class’s ________.
a. instance methods. b. instance variables. c. packages. d. None of the above.