To use a keyboard shortcut, hold down one or more modifier keys while pressing the last key of the shortcut. For example, to use the shortcut Command-C (copy), hold down Command, press C, then release both keys. Mac menus and keyboards often use symbols for certain keys, including the modifier keys: 1  Command â.
The syntax of the JavaScript for â¦ in loop is as follows: 1  Iterates through all enumerable properties of an object. 2  Iterates through all used indices of array including all user-defined properties of array object, if any. 3  Thus it may be better to use a traditional for loop with a numeric index when iterating over arrays.
An object oriented program can be characterized as data controlling access to code. Java is object oriented programming language. Java classes consist of variables and methods (also known as instance members). Java variables are two types either primitive types or reference types. First let us discuss how to declare class, variables and methods then we will discuss about access modifiers.