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Thread: Help with time

  1. #1
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    Default Help with time

    I am trying to make something like an alarm and it goes like this
        while(run){
            System.out.println(temp.getTime());
            if(temp.getTime()=="11:52"){
    	    run = false;
    	    JFrame frame = new JFrame("Alarm");
    	    frame.add(new Screen());
    	    frame.setSize(1280, 755);
    	    frame.setLocationRelativeTo(null);
    	    frame.setVisible(true);
    	    frame.setAlwaysOnTop(true);
    	    frame.setResizable(false);
    	    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    	}
        }

    So when it is 11:52, it doesn't show up.
    And when its 11:52, the console is still showing 11:51 however when i run it with only System.out.println(temp.getTime); again and again it changes. What can i do?


  2. #2
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    Default Re: Help with time

    My guess is that temp.getTime() returns a String, right?
    To compare Strings (and other objects) for equivalency, you need to use the .equals() method. So, instead of:
    if(temp.getTime()=="11:52"){
    you would need:
    if(temp.getTime().equals("11:52"){
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  3. #3
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    Default Re: Help with time

    The output is 11:51 some hundred thousand times and when time changes on computer to 11:52, its still 11:51.
    It has to go like 11:51 thousand times and when time changes on computer to 11:52, it should print 11:52 one time and show the window.
    Here is the getTime() method
    public String getTime(){
        return getHoursMinutes();
    } 
    // and here is getHoursMinutes()
                private String getHoursMinutes(){
    		String time;
    		if((date.getHours()-3)<12&&(date.getHours()-3)>0){
    			if((date.getMinutes()+30)<60){
    				time = (date.getHours()-3)+":"+(date.getMinutes()+30);
    				return time;
    			}else{
    				time = (date.getHours()-2)+":"+((date.getMinutes()+30)-60);
    				return time;
    			}
    		}else{
    			if((date.getMinutes()+30)<60){
    				time = (date.getHours()-3)-12+":"+(date.getMinutes()+30);
    				return time;
    			}else{
    				time = (date.getHours()-2)-12+":"+((date.getMinutes()+30)-60);
    				return time;
    			}
    		}
    	}

  4. #4
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    Default Re: Help with time

    Can you make a small complete program that compiles, executes and shows the problem?
    If you don't understand my answer, don't ignore it, ask a question.

  5. #5
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    Default Re: Help with time

    i got the problem a while ago but cause of that while loop i had the pc crash with like 104486528745647560 windows but i got it now

  6. #6
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    Default Re: Help with time

    Glad you got it.
    If you don't understand my answer, don't ignore it, ask a question.

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