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【笔记】Eclipse and Java for Total Beginners—001

minute_5 2022-06-30 阅读 32

    偶然搜到Mark Dexter的这个免费视频(​​http://eclipsetutorial.sourceforge.net/totalbeginner.html​​)。够傻瓜,够直观。慢慢习之。

Lesson 01 – Create Your First Java Class

  • Create Java project in Eclipse
  • Create Java package
  • Introduce classes and objects, naming conventions
  • Write a simple Java class (Person)
  1. Create Java project in Eclipse

        Java Project contains source code and relected files for building a Java program.

        File / New / Project / Java / Java project / Next / “TotalBeginner” (project name) / Next / Finish.

   2.  Create Java package

        Java Package contains related class files and allows you to use short-cut class names (用Ctrl-Space)。

        RC (right click) src / New / package / org.totalbeginner.tutorial (name) /

   3.  Introduce classes and objects, naming conventions

        Classes in intial caps (e.g.. Person, Book);

        Variables and method in lower case (e.g. .   maximumBooks, name).

   4.  Write a simple Java class (Person)


1 package org.totoalbeginner.tutorial;
2
3 public class Person {
4
5 // fields
6 private String name; // name of the person
7 private int maximumBooks; // most books the person can check out
8
9 // constructors
10 public Person() {
11 name = "unknown name";
12 maximumBooks = 3;
13 }
14
15 }


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