JTextField with arrow listener(up&down).

[Rush Art]

Hello, I am having hard to finding a code to manage to get this arrow listener(up&down) for a JTextField. I've taken a picture to show what I mean(Attachment).

Thanks.

[Campbell Ritchie]

Moving to Swing forum

[Rob Spoor]

Check out JSpinner. for the first one you will need a SpinnerListModel, for the second one a SpinnerNumberModel. Also check out spinner editors. In short, you can create these two fields like this:

Object[] countries = ...
JSpinner countrySpinner = new JSpinner(new SpinnerListModel(countries));
JSpinner yearSpinner = new JSpinner(new SpinnerNumberModel(...)); // use java.util.Calendar to get the current year
yearSpinner.setEditor(new JSpinner.NumberEditor(yearSpinner, "0")); // to get rid of any , in the year

[Maneesh Godbole]

More information on spinners here
http://java.sun.com/docs/books/tutorial/uiswing/components/spinner.html

[Rush Art]

Hello, I took a look at your example. I am still having hard to fitting the JSpinner into this part of the code. What am I missing? The shown example is how the complete look should look like, every part is done except the JSpinner.

Thanks.

//Four Buttons.  
		
		JButton jb4=new JButton("Save");
		JButton jb5=new JButton("Delete");
		JButton jb6=new JButton("Save Edit");
		JButton jb7=new JButton("Find");
		
		//Tekstregion
		JLabel jlbl1 = new JLabel("Contribution commands");
		JLabel jlbl2 = new JLabel("Country");
		JLabel jlbl3 = new JLabel("Year");
		JLabel jlbl4 = new JLabel("Contribution");
		JLabel jlbl5 = new JLabel("");
		JLabel jlbl6 = new JLabel("");
		JLabel jlbl7 = new JLabel("");
		JLabel jlbl8 = new JLabel("");
		
		//JSpinner
		Object[] countries = JSpinner; 
		countrySpinner = new JSpinner(new SpinnerListModel(countries));  
		JSpinner yearSpinner = new JSpinner(new SpinnerNumberModel());
		yearSpinner.setEditor(new JSpinner.NumberEditor(yearSpinner, "0"));
		
		String[] year={"1998","1999","2000","2001","2002","2003"};
		String[] country={"Andorra","Albania","Denmark","Norway","Sweden","USA"};
		
                //TextFields
		JTextField jtf1=new JTextField();
		JTextField jtf2=new JTextField();
		JTextField jtf3=new JTextField(" 0 ");
		
		JPanel jpi1 = new JPanel();
		
		//Panel
		JPanel jp1=new JPanel();
		jpi1.setLayout(new GridLayout(5,3));
		jp1.add(jpi1);
		
		//Buttons added to Panel
		
		jpi1.add(jlbl7);
		jpi1.add(jlbl8);
		jpi1.add(jlbl1);
		jpi1.add(jlbl2);
		jpi1.add(jtf1);
		jpi1.add(jb4);
		jpi1.add(jlbl3);
		jpi1.add(jtf2);
		jpi1.add(jb5);
		jpi1.add(jlbl4); 
		jpi1.add(jtf3);
		jpi1.add(jb6);
		jpi1.add(jlbl5);
		jpi1.add(jlbl6);
		jpi1.add(jb7); 
		
               //add Panel to jp1
		contentPane.add(jp1,BorderLayout.SOUTH);    

[Rob Spoor]

1)

		//JSpinner
		Object[] countries = JSpinner; 
		countrySpinner = new JSpinner(new SpinnerListModel(countries));  
		JSpinner yearSpinner = new JSpinner(new SpinnerNumberModel());
		yearSpinner.setEditor(new JSpinner.NumberEditor(yearSpinner, "0"));
		
		String[] year={"1998","1999","2000","2001","2002","2003"};
		String[] country={"Andorra","Albania","Denmark","Norway","Sweden","USA"};

Your country spinner will not contain the contents of the country array. You need to use this array inside your SpinnerListModel for the country spinner.

2) The years are hard coded this way but again not used. The SpinnerNumberModel has been defined without any parameters so that means its minimum value is Integer.MIN_VALUE, its maximum value is Integer.MAX_VALUE and its current value is 0. Try this:

JSpinner yearSpinner = new JSpinner(new SpinnerNumberModel(1998, 1998, 2003, 1));

This will also use the years from 1998 until 2003 with 1998 as the default.

3) You have nowhere added these two spinners to your user interface.


Now before asking any more questions I suggest you really read that link Maneesh has given you. It will probably help you understand how spinners work instead of just copying some example.