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Thread: generate a random number from 100 to 150, inclusive in applet

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    Default generate a random number from 100 to 150, inclusive in applet

    im not sure how to code the generated a random number from 100 to 150 inclusive for an applet


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    Default Re: generate a random number from 100 to 150, inclusive in applet

    What have you tried? What did google tell you?
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    Default Re: generate a random number from 100 to 150, inclusive in applet

    in goggle i found

    int Low = 10;
    int High = 100;
    int R = r.nextInt(High-Low) + Low;

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    but r.nextInt(High-Low) + Low i know isnt applet

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    ...what?

    Please see the link in my signature on asking smart questions.
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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Quote Originally Posted by chonch View Post
    but r.nextInt(High-Low) + Low i know isnt applet
    Lesson: Applets (The Java™ Tutorials > Deployment)

    import javax.swing.JApplet;
    import javax.swing.SwingUtilities;
    import javax.swing.JLabel;
     
    public class HelloWorld extends JApplet {
        //Called when this applet is loaded into the browser.
        public void init() {
            //Execute a job on the event-dispatching thread; creating this applet's GUI.
            try {
                SwingUtilities.invokeAndWait(new Runnable() {
                    public void run() {
                        JLabel lbl = new JLabel("Hello World");
                        add(lbl);
                    }
                });
            } catch (Exception e) {
                System.err.println("createGUI didn't complete successfully");
            }
        }
    }
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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    Default Re: generate a random number from 100 to 150, inclusive in applet

    if java.util.Random is available in applet environment then i don't see a problem. The thing is r.nextInt() where r is an instance of Random, produces negative value. So to produce a number between 100 and 150 inclusive u do is this:
    int a = r.nextInt() % 151 ;
    a = a > 0 ? a : -1 * a ; // making it positive
    if (a > 150){
        a %= 150 ; // cutting down to size
    if (a < 100)
        a += 100 ;
    if i misunderstood ur problem then sorry, very much sorry.
    Last edited by dumb_terminal; April 12th, 2011 at 04:06 PM.

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Quote Originally Posted by dumb_terminal View Post
    if java.util.Random is available in applet environment then i don't see a problem. The thing is r.nextInt() where r is an instance of Random, produces negative value. So to produce a number between 100 and 150 inclusive u do is this:
    int a = r.nextInt() % 151 ;
    a = a > 0 ? a : -1 * a ; // making it positive
    if (a > 150){
        a %= 150 ; // cutting down to size
    if (a < 100)
        a += 100 ;
    if i misunderstood ur problem then sorry, very much sorry.
    ...are you serious?
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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Quote Originally Posted by KevinWorkman View Post
    ...are you serious?
    Exactly what I thought
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Quote Originally Posted by dumb_terminal View Post
    int a = r.nextInt() % 151 ;
    a = a > 0 ? a : -1 * a ; // making it positive
    if (a > 150){
        a %= 150 ; // cutting down to size
    if (a < 100)
        a += 100 ;
    Ugh, seems to me like this is all he needs:

    int a = r.nextInt() % 51 + 100;

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Quote Originally Posted by Gerp View Post
    Ugh, seems to me like this is all he needs:
    Why use the modulus operator at all? You're a lot closer to being correct than dumb_terminal, but I don't see a need for modulus here at all.

    Besides, spoonfeeding is NOT helpful to the OP. He's probably long gone by now anyway.
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    Cool Re: generate a random number from 100 to 150, inclusive in applet

    i used this code on my hide and seek college project, where a certain circle will randomly display on the specified playing area.

    my playing area is g.fillRoundRect(245,185,280,280,15,15);

    it was adjusted so that it will not touch its border.

    ranX = 1 + (int)((530-260)*Math.random()+245);
    ranY = 1 + (int)((460-190)*Math.random()+175);

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    Default Re: generate a random number from 100 to 150, inclusive in applet

    Please check the date of the thread and the date of the last post. If the last post is older than ~3 weeks, it's dead. Let it rest in peace.

    Thread closed.

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