{"id":244,"date":"2017-12-02T03:10:00","date_gmt":"2017-12-02T03:10:00","guid":{"rendered":"https:\/\/kindsonthegenius.com\/blog\/2017\/12\/02\/java-progamming-for-beginners-lesson-2-write-your-first-java-program\/"},"modified":"2020-11-05T12:56:08","modified_gmt":"2020-11-05T11:56:08","slug":"java-progamming-for-beginners-lesson-2-write-your-first-java-program","status":"publish","type":"post","link":"https:\/\/kindsonthegenius.com\/blog\/java-progamming-for-beginners-lesson-2-write-your-first-java-program\/","title":{"rendered":"Java Progamming For Beginners Lesson 2: Write Your First Java Program"},"content":{"rendered":"
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This is Lesson 2 of the Java Programming Tutorials for Beginners, and in this Lesson, you would write your first Java Program. This lesson follows from the Lesson 1 which is Introduction to Java and Installation of Netbeans<\/a>. So If you have not taken Lesson 1, please take the lesson before you continue. You can find in the link:
Java Programming Tutorials for Beginners, Lesson 1: Introduction to Java<\/a><\/p>\n

So lets get started!<\/p>\n

<\/a><\/div>\n

Step 1: <\/b>Open Netbeans (This is actually the last step of Lesson 1)<\/p>\n\n\n\n\n
<\/a><\/td>\n<\/tr>\n
The Netbeans Window<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Step 2: Click on File and Select “New Project”. You would see the window below<\/p>\n

<\/a><\/div>\n

Under Categories, make sure Java is selected and under Projects: make sure Java Application is selected exactly as is shown.<\/p>\n

Step 3:  Click on Next. The window below appears<\/p>\n

<\/a><\/div>\n

Step 4: <\/b>In the Project Name box, delete what is there and write: MyFirstProgram (don’t give spaces). Then you can click on Finish<\/p>\n

<\/a><\/div>\n

If you have done everything correctly, the Java File opens where you can start writing programs. This is shown below.<\/p>\n

<\/a><\/div>\n

Step 5:<\/b> Take some time to observe the parts I labelled 1 – 6 as you can see in the screen below.<\/p>\n

<\/a>
1. MyFirstProgram.java<\/i> – This is the name of the file that you are currently looking at. Remember that Java file have the extension of .java.<\/div><\/p>\n

2. File Tab – Where you can see two folders. The Second folder is yours, Netbeans keeps all your file in this folder. Later, we would discuss the content.<\/p>\n

3. Navigator Tab – Shows you the classes and functions in your program(don’t worry about these, we would discuss them later)<\/p>\n

4. This section is where you actually write your program. So we would start writting program under the text that begins with \/\/ TODO…<\/p>\n

5. The name of the package. This is same name as the folder name in the Files tab. The package contains all your files.<\/p>\n

6. The name of the Function. Every java program must <\/i>have this Function called main.<\/p>\n

Now on to Step 6.<\/p>\n

Step 6:<\/b> In Section 6 under the part that says \/\/TODO….
Type the following line of code(don’t copy and paste, type it)
        System.out.println(“This is my First Program”);<\/i>
As you are typing, some pop-ups may appear, ignore them and just type exactly as you see here<\/p>\n

<\/a><\/div>\n
<\/div>\n

Step 7:<\/b> Run The Program by clicking on the Run button. The Run Button is highlighted in Red. It it a green play button.<\/div>\n

<\/div>\n
Step 8: <\/b>Wait for a few seconds and if you did everything correctly, the output of your program is shown as given below:<\/div>\n
<\/div>\n
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<\/a><\/div>\n<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n
<\/div>\n
If you have come this far, you have successfully completed Lesson 2 of the Java Programming Tutorials for Beginners.<\/div>\n
<\/div>\n
Congratulations!!If you have some issues, let me know in the comment box below, before I publish lesson 3.<\/div>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

This is Lesson 2 of the Java Programming Tutorials for Beginners, and in this Lesson, you would write your first Java Program. This lesson follows … <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[85,414],"tags":[],"_links":{"self":[{"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/posts\/244"}],"collection":[{"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/comments?post=244"}],"version-history":[{"count":1,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/posts\/244\/revisions"}],"predecessor-version":[{"id":1687,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/posts\/244\/revisions\/1687"}],"wp:attachment":[{"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/media?parent=244"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/categories?post=244"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kindsonthegenius.com\/blog\/wp-json\/wp\/v2\/tags?post=244"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}