Using Objects in AP Computer Science A
Which Java method returns the absolute value of an int variable named 'x'?
Which expression would give you a random even integer between 102 and 120 inclusive by using Java's Math.random() method?
Given a recursive method public static int mystery(int x) that uses Math.random() to sometimes increase and other times decrease the value of x before the next recursive call, which change would most likely make it terminate more often?
Which method from the Math class would you use in Java to obtain the larger of two integers – x and y?
If x and y are both positive double values greater than 0 and less than 10, which code snippet will return a double value closest to an integer without ever exceeding it?
Which expression correctly computes the value of a double x raised to the power of another double y, ensuring that the result is also a positive integer?
What would be the result of calling Math.ceil on a negative non-integer double value in Java?
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When would it be most appropriate to use the Math.abs(a - b) method instead of just computing a - b directly in your code?
Which method from the Java's built-in 'Math' class can generate random numbers between [0 and 1)?
How would you generate a random integer between 50 and 100 inclusive using Math.random()?