Abstract
By the end of this chapter students should be able to:
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explain the meaning of the terms software, program, source code , program code;
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distinguish between application software and system software ;
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explain how Java programs are compiled and run;
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provide examples of different types of java applications;
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write Java programs that display text on the screen;
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join messages in output commands by using the concatenation (+) operator;
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add comments to programs.
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Notes
- 1.
The original developers of Java were Sun Microsystems™. This company was acquired by Oracle™ in 2010.
- 2.
In Chap. 10 you will learn to create graphics programs with a package called JavaFX, and in the case of JavaFX applications you will see that in some instances it is possible to run a JavaFX application without a main method.
- 3.
In fact, if you left out the words in brackets your program would still compile—but it wouldn’t do what you wanted it to do!
- 4.
You will notice that we are using bold courier font for Java keywords.
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Charatan, Q., Kans, A. (2019). The First Step. In: Java in Two Semesters. Texts in Computer Science. Springer, Cham. https://doi.org/10.1007/978-3-319-99420-8_1
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DOI: https://doi.org/10.1007/978-3-319-99420-8_1
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