June 2004
Intermediate to advanced
848 pages
21h 28m
English
Content preview from Just Java™ 2
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Chapter 3. Primitive Types, Wrappers, and Boxing
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Boolean
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Char
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INT
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Long
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Byte
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Short
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Limited Accuracy of Floating Point Types
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Double
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Float
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Object Wrappers for Primitives
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Autoboxing and Unboxing
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Performance Implications of Autoboxing
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Java.lang.Object
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Java.lang.String
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Language Support for String Concatenation
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String Comparison
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Some Light Relief—Hatless Atlas
There are eight built-in, non-object types in Java, known as primitive types. Every piece of data in a class is ultimately represented in terms of these primitive types. The eight primitive types are:
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boolean(for true/false values) -
char(for character data, ultimately to be input or printed) -
int, long, byte, short(for arithmetic on whole numbers) ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.