1.29 Summary

Most of the learning content is the same as the array content learned in the Java Foundation

What do you need to be aware of in an array?

Each element in the array must be of the same data type.
An array is a contiguous memory space
The elements in the array are variables or literal constants.
The array element subscript starts at 0.
After the array is created, each element is initialized. An int has an initialization value of 0,double of 0.0, and the initial value of the reference type is null.
The length of the array cannot be changed.
The element type of an array is the type defined when the array is declared.

How do I declare an array?

Example: int [] a = new int [array length] or int [] A = {element 1, element 2, Element 3}

1.29 Summary