[자바] 대화 상자 프로그램 포팅 : Java JWT 기반(복리 이자 계산기 만들기 1)

 

복리 이자 계산기

 

빈프레임 윈도우를 만들어줍니다.

import java.awt.Frame;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class InterestCalc {
	public static void main(String[] args) {
		Frame calcFrame = new Frame(); 
 		calcFrame.setTitle("복리 이자 계산기"); 
 		calcFrame.setBounds(100,100,600,400); 
 
 		calcFrame.setVisible(true); 
 
 		calcFrame.addWindowListener(new WindowAdapter() { 
 			public void windowClosing(WindowEvent e) { 
 				System.exit(0); 
 			} 
 		}); 
	}
}

 

윈도우내의 버튼, 그룹박스, 라벨, 텍스트 필드, 라디오 버튼을 추가하여 기본 틀을 만들어줍니다.

 

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class Main {
    public static void main(String[] args) {
        Frame calcFrame = new Frame();
        calcFrame.setTitle("복리 이자 계산기");
        calcFrame.setBounds(100,100,600,400);
        calcFrame.setResizable(false);

        calcFrame.setLayout(null);

        Button buttonCalc = new Button("계산");
        Button buttonClose = new Button("닫기");

        buttonCalc.setBounds(500,30,90,40);
        buttonClose.setBounds(500,75,90,40);

        calcFrame.add(buttonCalc);
        calcFrame.add(buttonClose);

        calcFrame.setBackground(Color.LIGHT_GRAY);

        Panel panelLeft = new Panel() {
            public void paint(Graphics g) {
                g.setColor(Color.BLACK);
                g.drawRect(5,5,230,230);
                g.setColor(Color.LIGHT_GRAY);
                g.drawLine(7,5,37,5);
                g.setColor(Color.BLACK);
                g.drawString("준비",10,10);
            }
        };

        panelLeft.setBounds(10,35,240,240);
        calcFrame.add(panelLeft);

        Panel panelRight = new Panel() {
            public void paint(Graphics g) {
                g.setColor(Color.BLACK);
                g.drawRect(5,5,230,230);
                g.setColor(Color.LIGHT_GRAY);
                g.drawLine(7,5,92,5);
                g.setColor(Color.BLACK);
                g.drawString("복리 계산 주기",10,10);
            }
        };

        panelRight.setBounds(250,35,240,240);
        calcFrame.add(panelRight);

        Panel panelBottom = new Panel() {
            public void paint(Graphics g) {
                g.setColor(Color.BLACK);
                g.drawRect(5,5,470,105);
                g.setColor(Color.LIGHT_GRAY);
                g.drawLine(7,5,37,5);
                g.setColor(Color.BLACK);
                g.drawString("결과",10,10);
            }
        };

        panelBottom.setBounds(10,275,480,115);
        calcFrame.add(panelBottom);

        panelLeft.setLayout(null);

        Label labelPrincipal = new Label("원금");
        labelPrincipal.setBounds(30,30,40,50);
        panelLeft.add(labelPrincipal);

        Label labelInterestRate = new Label("이율");
        labelInterestRate.setBounds(30,100,40,50);
        panelLeft.add(labelInterestRate);

        Label labelPeriod = new Label("기간");
        labelPeriod.setBounds(30,170,40,50);
        panelLeft.add(labelPeriod);

        final TextField tfPrincipal = new TextField(16);
        tfPrincipal.setBounds(70,38,100,30);
        panelLeft.add(tfPrincipal);

        final TextField tfInerestRate = new TextField(16);
        tfInerestRate.setBounds(70,108,100,30);
        panelLeft.add(tfInerestRate);

        final TextField tfPeriod = new TextField(16);
        tfPeriod.setBounds(70,178,100,30);
        panelLeft.add(tfPeriod);

        Label labelPer = new Label("%");
        labelPer.setBounds(180,100,40,50);
        panelLeft.add(labelPer);

        Label labelYears = new Label("years");
        labelYears.setBounds(180,170,40,50);
        panelLeft.add(labelYears);

        CheckboxGroup group = new CheckboxGroup();
        final Checkbox checkPeriod1Month =
                new Checkbox("    1개월",group,false);
        final Checkbox checkPeriod3Month =
                new Checkbox("    3개월",group,false);
        final Checkbox checkPeriod6Month =
                new Checkbox("    6개월",group,false);
        final Checkbox checkPeriod1Year =
                new Checkbox("    12개월",group,true);

        panelRight.setLayout(null);

        checkPeriod1Month.setBounds(50,30,80,50);
        checkPeriod3Month.setBounds(50,80,80,50);
        checkPeriod6Month.setBounds(50,130,80,50);
        checkPeriod1Year.setBounds(50,180,80,50);

        panelRight.add(checkPeriod1Month);
        panelRight.add(checkPeriod3Month);
        panelRight.add(checkPeriod6Month);
        panelRight.add(checkPeriod1Year);

        panelBottom.setLayout(null);

        Label labelInterestEarnd = new Label("이자");
        labelInterestEarnd.setBounds(30,30,40,50);
        panelBottom.add(labelInterestEarnd);

        Label labelAmountEarnd = new Label("총액");
        labelAmountEarnd.setBounds(230,30,40,50);
        panelBottom.add(labelAmountEarnd);

        final TextField tfInterestEarned = new TextField(16);
        tfInterestEarned.setBounds(70,38,100,30);
        panelBottom.add(tfInterestEarned);

        final TextField tfAmountEarned = new TextField(16);
        tfAmountEarned.setBounds(270,38,100,30);
        panelBottom.add(tfAmountEarned);

       
    }
}