A class--the basic building block of an object-oriented language such as Java--is a template that describes the data and behavior associated with instances of that class. When you instantiate a class you create an object that looks and feels like other instances of the same class. The data associated with a class or object is stored in variables the behavior associated with a class or object is implemented with methods. Methods are similar to the functions or procedures in procedural languages such as C.-A class--the basic building block of an object-oriented language such as Java--is a template that describes the data and behavior associated with instances of that class. When you instantiate a class you create an object that looks and feels like other instances of the same class. The data associated with a class or object is stored in variables　the behavior associated with a class or object is implemented with methods. Methods are similar to the functions or procedures in procedural languages such as C.