Job Title 27

63: Static indicates that the program is statically resourced and does not belong to the access modifier.

64: Variables can be decorated with static and final keywords, when the variable becomes a constant.

65: For normal reference type variables, = = and equals () are used to compare the addresses of two values for equality. In the case of strings, = = is used to compare the two values of the address is equal, equals is to compare the content of two values is equal. For basic data types, = = Compares two values for equality, but cannot use = = comparison with int and string

69: To perform a method rewrite, the precondition is that you must inherit the class or implement an interface, followed by a method that can be overridden, and finally to meet the rewrite requirements.

84: Output and then self-increment

93: An object is an instance of a class, not a collection, and the characteristics and behavior of an object are encapsulated in a class, indivisible

106: In a static method, only static methods can be called, and non-static methods cannot be called directly

119: Class defines a conceptual model with objects that are real entities

The string defined by the 126:string class is a constant

127:arr is a static variable array, which is a class property whose value defaults to 0, and the static variable can be used directly in the static main () method, and the output array element is 0

128: Calling a method in the same class can be called by the class name. Method name, and note the return value of the parameter

129: Static members can be accessed directly in static methods

It's 130.

Job Title 27