Day11 Detail Memory

Single duty: One way to do only a thing.

Value passing--java only values are passed.

Gender (gender) male (male) female (female)

In the auto-generated set, get method, the Get method of the Boolean type needs to be changed manually to get (by default, is).

This:1, this. (method or property) This now refers to the current object.

2. This is the other constructor method that calls this class, as is the super usage.

After jdk1.5, the array as a parameter, you can write [] as ...

1. The traditional way [], the caller can only pass in the array object.

2. After jdk1.5 ..., the caller can either pass an array object or pass any number of elements.

The three major drawbacks of the array: 1, fixed length. 2. Only the same data type can exist. 3, continuous memory address space storage.

The dimension of Understanding the world:

One-dimensional-line

Two-dimensional-surface

Three-dimensional--body

Four Dimensions-time

Five-dimensional acceleration

Learning! Self - reliance!

Day11 Detail Memory