84 lines
2.3 KiB
Java
84 lines
2.3 KiB
Java
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Random strings applet
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import java.awt.*;
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import java.applet.*;
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public class RandomStrings extends Applet {
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String message; // The message to be displayed. This can be set in
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// an applet param with name "message". If no
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// value is provided in the applet tag, then
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// the string "Java!" is used as the default.
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Font font1, font2, font3, font4, font5; // The five fonts.
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public void init() {
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message = getParameter("message");
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if (message == null)
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message = "Java!";
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font1 = new Font("Serif", Font.BOLD, 14);
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font2 = new Font("SansSerif", Font.BOLD + Font.ITALIC, 24);
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font3 = new Font("Monospaced", Font.PLAIN, 20);
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font4 = new Font("Dialog", Font.PLAIN, 30);
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font5 = new Font("Serif", Font.ITALIC, 36);
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setBackground(Color.black);
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} // end init()
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public void paint(Graphics g) {
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int width = getSize().width; // Get the applet's width and height.
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int height = getSize().height;
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for (int i = 0; i < 25; i++) {
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// Draw one string. First, set the font to be one of the five
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// available fonts, at random.
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int fontNum = (int)(5*Math.random()) + 1;
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switch (fontNum) {
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case 1:
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g.setFont(font1);
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break;
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case 2:
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g.setFont(font2);
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break;
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case 3:
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g.setFont(font3);
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break;
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case 4:
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g.setFont(font4);
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break;
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case 5:
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g.setFont(font5);
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break;
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} // end switch
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// Set the color to be a bright, saturated color, with a random hue.
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float hue = (float)Math.random();
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g.setColor( Color.getHSBColor(hue, 1.0F, 1.0F) );
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// Select the position of the string, at random.
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int x,y;
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x = -50 + (int)(Math.random()*(width+40));
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y = (int)(Math.random()*(height+20));
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// Draw the message.
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g.drawString(message,x,y);
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}
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} // end paint()
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} // end class RandomStrings
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