Java Programming and Data Structures

These flashcards cover key concepts in Java programming related to mathematical functions, characters, strings, and formatting output.

Math Class

A class in Java that provides methods for performing common mathematical functions.

Exponent Methods

Methods such as exp, log, and pow that deal with exponential operations.

ceil method

Rounds a double value up to the nearest integer.

floor method

Rounds a double value down to the nearest integer.

abs method

Returns the absolute value of a given parameter.

random method

Generates a random double value in the range [0.0, 1.0).

Unicode

A 16-bit encoding scheme to represent written texts in diverse languages.

Character Class Methods

Methods that allow testing and converting characters such as isDigit, isLetter, isUpperCase.

String Type

A reference type in Java used to represent a sequence of characters.

instance methods

Methods that can only be invoked on a specific instance of a class.

substring method

Returns a substring from the specified beginIndex to endIndex.

parseInt method

Converts a string to an integer.

printf

A method used to format and display output in Java.

%d format specifier

Specifies that the output is a decimal integer.

%f format specifier

Specifies that the output is a floating-point number.