What is the function of the getOrDefault(Object key, V defaultValue) method of the Map interface?
Answer: returns the value associated with the included key, but if the key was not found it will return the default value.
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Data Structures
- What is the general function of the Period and Duration classes?
- What is the general function of the LocalDateTime class?
- What is the general function of the LocalTime class?
- What is the output of the following code?
- What is the function of the of() methods and the ofYearDay() method of the LocalDate class?
- What is the function of the parse(CharSequence text) and parse(CharSequence text, DateTimeFormatter formatter) methods of the LocalDate class?
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- What is the function of the compare(T a, T b, Comparator c) method of the Objects class?
- What is the output of the following code segment?
- What two classes are useful resources for Object Utilities.
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- What is the function of the toString() and deepToString() methods from the java.util.Arrays class?
- What is the function of the hashCode() and deepHashCode() methods from the java.util.Arrays class?
- What is the function of the copyOf() and copyOfRange() methods from the java.utils.Arrays class?
- What is the function of the compare(), mismatch(), equals() and deepEquals() methods from the java.util.Arrays class?
- What is the function of the binarySearch() method from the java.util.Arrays class?
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