Part IV: Making It Cool in Java

Generate QR Code in Java Part IV: Making It Cool

To insert a Java applet in your Web page, follow these steps: 1 Click to insert the cursor where you want the applet to display on your Web page 2 Select Common from the Insert bar, if it isn t already selected 3 From the Media drop-down list on the Common Insert bar, choose Applet (the icon looks like a little coffee cup) Alternatively, you can choose Insert Media Applet The Select File dialog box appears 4 Use the Browse button to locate the Java applet file you want to insert on the page 5 Click to highlight the filename, and then click OK to close the dialog box Dreamweaver doesn t display applets in the Dreamweaver work area Instead, you see an icon that represents the applet To view the applet on your Web page (the only way to see the applet in action), preview the page in a browser, such as Navigator 40 and later or Internet Explorer 40 and later, that supports applets 6 Select the Applet icon to open the Properties inspector You can set many options in the Properties inspector If you want to know more about these options, read on

JavaScript, a scripting language that many people often confuse with Java, has little in common with Java other than its name and some syntactic similarities in the way the language works JavaScript is much simpler than Java with far fewer capabilities Unlike Java, you can write JavaScript directly into HTML code to create interactive features You can t use it, however, to create standalone applets and programs, as you can use Java You don t get the complex functionality of Java, but JavaScript is much easier to use and doesn t require a plug-in JavaScript is often used in combination with other multimedia elements on a page, such as images or sound files, to add greater levels of interactivity Dynamic HTML also uses JavaScript and is covered in s 8 and 9 In those chapters, you can read about how to use Dreamweaver to apply behaviors and other features using JavaScript with HTML

Like other file formats that require plug-ins or advanced browser support, Java applets come with the following options (see Figure 11-6):

Applet Name: Use this field in the upper-left corner if you want to type a name for your applet Dreamweaver doesn t apply a name if you leave this field blank This name identifies the applet for scripting W (Width): This option specifies the width of the applet You can set the measurement in pixels or as a percentage of the browser window s width H (Height): This option specifies the height of the applet You can set the measurement in pixels or as a percentage of the browser window s height Code: Dreamweaver automatically enters the code when you insert the file Code specifies the content file of the applet You can type your own filename or click the folder icon to choose a file Base: Automatically entered when you insert the file, Base identifies the folder that contains the applet Most browsers aren t set up for automatic install, so you can type your own directory name This folder is necessary for applets consisting of multiple files Align: This option determines how the object aligns on the page Alignment works just as it does for images Alt: This option enables you to specify an alternative file, such as an image, that displays if the viewer s browser doesn t support Java That way, the user doesn t see just a broken file icon If you type text in this field, the viewer sees this text; Dreamweaver writes it into the code by using the Alt attribute of the <APPLET> tag If you use the folder icon to select an image, the viewer sees an image; Dreamweaver automatically inserts an <IMG> tag within the <APPLET> and </APPLET> tags of the applet