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Questions and Answers
What does the method abs() do?
What does the method abs() do?
- Returns the larger value of x and y
- Rounds down
- Rounds to the nearest whole number
- Returns the absolute value (correct)
What is the purpose of the round() method?
What is the purpose of the round() method?
- Rounds to the nearest whole number (correct)
- Rounds down
- Returns a double in the range [0, 1.0)
- Rounds up
What does the ceil() method do?
What does the ceil() method do?
- Returns the square root
- Rounds up (correct)
- Returns the smaller value of x and y
- Rounds down
What is the function of the floor() method?
What is the function of the floor() method?
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What does max(x, y) return?
What does max(x, y) return?
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What is the purpose of the min(x, y) method?
What is the purpose of the min(x, y) method?
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What does the pow(x, y) method calculate?
What does the pow(x, y) method calculate?
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What does the random() method return?
What does the random() method return?
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What is the function of the sqrt() method?
What is the function of the sqrt() method?
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Study Notes
Java Math Class Methods
- abs(): Computes the absolute value of a number, ensuring all results are non-negative.
- round(): Rounds a floating-point number to the nearest whole integer, using standard rounding rules.
- ceil(): Always rounds a number up to the nearest whole number, regardless of its decimal value.
- floor(): Always rounds a number down to the nearest whole number, effectively discarding the decimal part.
- max(x, y): Compares two values and returns the greater of the two, useful for finding maximum values.
- min(x, y): Compares two values and returns the smaller of the two, ideal for identifying minimum values.
- pow(x, y): Raises a number x to the power of y, allowing calculations of exponentiation.
- random(): Generates and returns a double value that falls within the range [0.0, 1.0), providing a basis for random number generation.
- sqrt(): Calculates and returns the square root of a given number, essential for various mathematical operations.
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Description
Test your knowledge of Java's Math class methods with these flashcards. Each card presents a method and its definition, helping you understand how to use absolute values, rounding, and finding maximum and minimum values. Perfect for Java programming students!
