Java Math Class Review Flashcards

Java Math Class Overview

• Math.pow(4, 2) computes 4 raised to the power of 2, resulting in 16.0.
• Math.ceil(5.1) rounds a number up to the nearest integer, resulting in 6.0.
• Math.floor(8.9) rounds a number down to the nearest integer, resulting in 8.0.

Square Root and Rounding Functions

• Math.sqrt(49) calculates the square root of 49, resulting in 7.0.
• Math.round(12.34) rounds 12.34 to the nearest integer, resulting in 12.
• Math.round(12.56) rounds 12.56 to the nearest integer, resulting in 13.

Max and Min Functions

• Math.max(7, 3) returns the greater of the two values, which is 7.
• Math.min(7, 3) returns the lesser of the two values, which is 3.
• Math.max(2.3, 5.6) compares two double values and returns the larger one, 5.6.
• Math.min(2.3, 5.6) compares two double values and returns the smaller one, 2.3.

Absolute Value Function

• Math.abs(-213) returns the absolute value of -213, resulting in 213.
• Math.abs(213) returns the absolute value of 213, which is also 213.

Random Number Generation

• Math.random() generates a random number in the range [0.0, 1.0).
• Math.random() * 10 produces a random number in the range [0.0, 10.0).
• Math.random() * 20 + 10 generates a random number in the range [10.0, 30.0).