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Java Java Objects Meet Objects Creating Classes

Posted by Dinu Comendant
Dinu Comendant
6,049 Points

Any examples when we won't use "new"?

I don't feel like I fully understand the "new" concept, are there any examples when you don't use it?

2 Answers

Sean M
Sean M
7,344 Points
Sean M
Sean M
7,344 Points

You use the word "new" for when introducing a new type of object.

For example, when introducing an array list. The code below is implemented.

ArrayList<String> nums = new ArrayList<String>();
Chris Shearon
PLUS
Chris Shearon
Courses Plus Student 17,330 Points
Chris Shearon
Chris Shearon
Courses Plus Student 17,330 Points

You won't use the "new" keyword for the primitive datatypes.

I may be getting too deep in the Java weeds here but the "new" keyword basically means "Hey JVM, allocate some space on the managed heap and structure it to hold an implementation (or instance) of the <insert object name>.class and return the address (or reference) to that space into the variable <insert variable name>."