DeclarationAndInstantiation.java

// declarations
int a;
int[] b;
Car toyota;

// we "declare" b as an array of integers, then "instantiate" a new array of integers with size 10 and "assign" it to b.
int[] b = new int[10];

// we "declare" toyota as a Car, then "instantiate" a new Car object and "assign" it to toyota.
Car toyota = new Car();