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Thread: Amortization Schedule Table Help.

  1. #1
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    Default Amortization Schedule Table Help.

    Hi, I am making an Amortization Schedule and am having trouble with the table. Is there a way to set the number of rows in the table? Can I set that based off of how many payments the user will make on their loan. Thanks!

    Code:

    import java.awt.Color;
    import java.awt.Dimension;
    import java.awt.FlowLayout;
    import java.awt.Font;
    import java.awt.Point;
    import java.awt.Rectangle;
    import java.awt.event.ActionEvent;
    import java.awt.event.ActionListener;
     
    import javax.swing.*;
    public class AmortizationGUI extends JFrame implements ActionListener {
     
     
     
    	public AmortizationGUI(){
    		Font font = new Font("Arial",Font.PLAIN,16);
    		Font fieldFont = new Font("Arial", Font.PLAIN,14);
    		//JFrame attributes
    		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    		setTitle("Amortization Schedule");
    		setSize(800,800);
    		setLocationRelativeTo(null);
    		setResizable(false);
    		//initialize panel
    		JPanel panel = new JPanel();
    		panel.setLayout(null);
     
     
     
    		//initialize JLabels
    		JLabel lA = new JLabel("Loan Amount:");
    		lA.setLocation(50,50);
    		lA.setFont(font);
    		lA.setSize(100,50);
    		lA.setVisible(true);
    		JLabel iR = new JLabel("Interest Rate:");
    		iR.setSize(100,50);
    		iR.setFont(new Font("Arial",Font.PLAIN,17));
    		iR.setLocation(50,100);
    		iR.setVisible(true);
    		JLabel yL = new JLabel("Years of Loan:");
    		yL.setSize(100,50);
    		yL.setLocation(49,150);
    		yL.setVisible(true);
    		yL.setFont(font);
    		//initialize JTextFields
    		JTextField lAField = new JTextField(40);
    		lAField.setSize(70,20);
    		lAField.setLocation(150,66);
    		lAField.setVisible(true);
    		lAField.setFont(fieldFont);
    		lAField.setBorder(BorderFactory.createLineBorder(Color.BLACK));
    		JTextField iRField = new JTextField(10);
    		iRField.setSize(70,20);
    		iRField.setLocation(150,116);
    		iRField.setVisible(true);
    		iRField.setFont(fieldFont);
    		iRField.setBorder(BorderFactory.createLineBorder(Color.BLACK));
    		JTextField yLField = new JTextField(10);
    		yLField.setSize(70,20);
    		yLField.setLocation(150,166);
    		yLField.setVisible(true);
    		yLField.setFont(fieldFont);
    		yLField.setBorder(BorderFactory.createLineBorder(Color.black));
     
    		//initialize button
    		JButton calc = new JButton("Calculate");
    		calc.setSize(100,50);
    		calc.setLocation(100,206);
    		calc.setVisible(true);
    		calc.setFont(font);
    		calc.setBorder(BorderFactory.createLineBorder(Color.BLACK));
    		//button ActionListener
     
    		//initialize table
    		JTable table;
     
    		String columnNames[] ={"Payment #","Amount Paid","Principal","Interest","Balance"};
     
     
    		Object data[][] = {
    				{"","","","",""}
    		};
     
    		table = new JTable(data,columnNames);
    		table.setPreferredScrollableViewportSize(new Dimension(400,100));
    		table.setFillsViewportHeight(true);
     
    		JScrollPane scrollPane = new JScrollPane(table);
    		scrollPane.setBounds(250,200,500,500);
     
    		//adding elements 
    		panel.add(lA);
    		panel.add(iR);
    		panel.add(yL);
    		panel.add(lAField);
    		panel.add(iRField);
    		panel.add(yLField);
    		panel.add(calc);
    		panel.add(scrollPane);
     
     
    		panel.setVisible(true);
    		add(panel);
     
     
    	}
     
     
     
     
    	public static void main(String[] args){
    		AmortizationGUI gui = new AmortizationGUI();
     
    		gui.setVisible(true);
     
    	}
     
     
     
     
    	@Override
    	public void actionPerformed(ActionEvent arg0) {
    		// TODO Auto-generated method stub
     
    	}
     
     
     
     
     
     
    }


  2. #2
    Super Moderator curmudgeon's Avatar
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    Default Re: Amortization Schedule Table Help.

    Moderation: original moderated post "approved" and is now visible.

    As for your number of rows -- that equals the number of payments and is part of the amortization formula.

  3. #3
    Administrator copeg's Avatar
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    Default Re: Amortization Schedule Table Help.

    This thread has been cross posted here:

    http://www.java-forums.org/new-java/67363-amortization-schedule-table-help.html

    Although cross posting is allowed, for everyone's benefit, please read:

    Java Programming Forums Cross Posting Rules

    The Problems With Cross Posting


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