AP CS Notes - StarShipTutor/StarshipTutorAPCS GitHub Wiki

Naming Conventions

Variable Names

• camelCase - thisIsAVariableName, ThisIsAClassName
• Names cannot begin with a number

Arrays ( Doc )

int[] theArray; // Declare

theArray = new int[] {21, 22, 23, 24, 25}; // Instantiate

--

int[] theArray = {21, 22, 23, 24, 25}; // Declare & Instantiate

--

int[] theArray = new int [5]; // array of length 5 -- ???

Array Methods

import java.util.Arrays;

• Arrays have length -- int theLength = array.length;

• Arrays.equals ( array1, array2 );

• Arrays.copyOfRange ( array, start, stop );

• Arrays.toString ( array );

• Arrays.sort ( array );

• Arrays.binarySearch ( array, value );