Java Graphics , Program Nilai Mahasiswa

Program Java Grafik yang sebenernya tugas kuliah waktu taun 2013, kodenya sedikit ngaco karena waktu yang di beri dosen singkat, jadi bikin programnya sejadi-jadinya.

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nah itu, logo di gantinya dari JLabel, di modifikasi saja dari JLabel > properties dan ganti icon JLabel.,
dan kode programnya :

Library :

import java.awt.*;
import java.awt.Color;
import static java.awt.Color.blue;
import static java.awt.Color.green;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.TextAttribute;
import java.awt.geom.GeneralPath;
import java.text.AttributedString;

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kode program :

   
    //membuat attribut untuk menampung variabel input text field
private int hdir,tgs,uts,uas;
double hasil;



    /**
     * Creates new form FORMINPUT
     */
    public FORMINPUT() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                        
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jLabel2 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jLabel5 = new javax.swing.JLabel();
        jLabel6 = new javax.swing.JLabel();
        jLabel4 = new javax.swing.JLabel();
        fkehadiran = new javax.swing.JTextField();
        ftugas = new javax.swing.JTextField();
        fuas = new javax.swing.JTextField();
        futs = new javax.swing.JTextField();
        nakhir = new javax.swing.JLabel();
        hitungBtn = new javax.swing.JButton();
        form = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
        jLabel1.setText("Data nilai mahasiswa");

        jLabel2.setText("Tugas");

        jLabel3.setText("UTS");

        jLabel5.setText("Kehadiran");

        jLabel6.setText("UAS");

        jLabel4.setText("Nilai akhir");

        hitungBtn.setText("Hitung dan Tampilkan");
        hitungBtn.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                hitungBtnActionPerformed(evt);
            }
        });

        form.setIcon(new javax.swing.ImageIcon(getClass().getResource("/logounpam.png"))); // NOI18N

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(22, 22, 22)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addComponent(form, javax.swing.GroupLayout.PREFERRED_SIZE, 270, javax.swing.GroupLayout.PREFERRED_SIZE)
                    .addComponent(hitungBtn)
                    .addComponent(jLabel1)
                    .addGroup(layout.createSequentialGroup()
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(jLabel5)
                            .addComponent(jLabel2)
                            .addComponent(jLabel3)
                            .addComponent(jLabel6)
                            .addComponent(jLabel4))
                        .addGap(29, 29, 29)
                        .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                            .addComponent(nakhir)
                            .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
                                .addComponent(fkehadiran, javax.swing.GroupLayout.DEFAULT_SIZE, 75, Short.MAX_VALUE)
                                .addComponent(ftugas)
                                .addComponent(futs)
                                .addComponent(fuas)))))
                .addContainerGap(503, Short.MAX_VALUE))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(28, 28, 28)
                .addComponent(form)
                .addGap(34, 34, 34)
                .addComponent(jLabel1)
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel5)
                    .addComponent(fkehadiran, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel2)
                    .addComponent(ftugas, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel3)
                    .addComponent(futs, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(18, 18, 18)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel6)
                    .addComponent(fuas, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addGap(28, 28, 28)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jLabel4)
                    .addComponent(nakhir))
                .addGap(31, 31, 31)
                .addComponent(hitungBtn)
                .addContainerGap(81, Short.MAX_VALUE))
        );

        pack();
    }// </editor-fold>                      

    private void hitungBtnActionPerformed(java.awt.event.ActionEvent evt) {                                        
        // TODO add your handling code here:
        //kode ketika tombol hitung di klik
        //menyimpan variabel input dan menyimpan sekaligus menampilkan grafik
        //dari fungsi paintcomponents
      
        hdir = Integer.parseInt(fkehadiran.getText());
        tgs = Integer.parseInt(ftugas.getText());
        uts = Integer.parseInt(futs.getText());
        uas = Integer.parseInt(fuas.getText());
      
        hasil = (hdir*0.1)+(tgs*0.2)+(uts*0.3)+(uas*0.4); //perhitungan nilai
        nakhir.setText(Double.toString(hasil));
      
        paintComponents(getGraphics());
    }                                       

    public void paint(Graphics g){
        super.paintComponents(g); //ini yang bikin tampil bareng sama jtextfield
    Graphics2D g2d = (Graphics2D)g;
    g2d.setColor(Color.red);
    GeneralPath gp = new GeneralPath(GeneralPath.WIND_NON_ZERO);
  
    //garis horizontal 10 kali dengan looping
            for(int i=0;i<200;i=i+20){
                int no = i;
                g.drawLine(250, 350+i, 250, 380+i);
                gp.moveTo(250, 350+i);
                gp.lineTo(600, 350+i);
                g2d.draw(gp);
            }
          
            //judul
            g.drawString("Mahasiswa", 360, 300);
            g2d.fillRect(340, 300, 10, 10);
          
          
            g.drawLine(250, 550, 600, 550);  //garis
            g.drawString("0", 230, 560);
            g.drawString("10", 230, 540);
            g.drawString("20", 230, 520);
            g.drawString("30", 230, 500);
            g.drawString("40", 230, 480);
            g.drawString("50", 230, 460);
            g.drawString("60", 230, 440);
            g.drawString("70", 230, 420);
            g.drawString("80", 230, 400);
            g.drawString("90", 230, 380);
            g.drawString("100", 230, 360);
          
            g.drawString("Kehadiran", 265, 565);
            g.drawString("Tugas", 335, 565);
            g.drawString("UTS",  385, 565);
            g.drawString("UAS", 420, 565);
          
            //tulisan judul
            String Words = "UNIVERSITAS PAMULANG";
         Font font = new Font("Arial",Font.PLAIN, 30);
         AttributedString as1 = new AttributedString(Words);
         as1.addAttribute(TextAttribute.FONT, font);
        // as1.addAttribute(TextAttribute.FOREGROUND, Color.blue, 0, 6);
       
         //gradient
         GradientPaint gdp;
    gdp = new GradientPaint(110,10,Color.blue,10,90,Color.red,true);
    g2d.setPaint(gdp);
    g2d.drawString(as1.getIterator(),300,250);
  
    String nama = "Muhammad Iskandar Zulkarnain";
    Font hurufnama = new Font("Arial",Font.PLAIN,20);
    AttributedString nama1 = new AttributedString(nama);
    nama1.addAttribute(TextAttribute.FONT, hurufnama);
  
    g2d.drawString(nama1.getIterator(),300,620);
  
    }
  
    /* karena jika di klik maka attribut paint sebelumnya akan di timpa dengan
    paint yang sesudh di klik, maka di tuliskan lagi semua komponen paint sebelumnya di
    fungsi paint setelah di klik
     *
  
    */
    public void paintComponents(Graphics b){
        super.paintComponents(b);
        Graphics2D g3d = (Graphics2D)b;
        g3d.setColor(Color.red);
        //button
        hdir = Integer.parseInt(fkehadiran.getText());
        tgs = Integer.parseInt(ftugas.getText());
        uts = Integer.parseInt(futs.getText());
        uas = Integer.parseInt(fuas.getText());
      
        GeneralPath gp = new GeneralPath();
        b.drawString("Mahasiswa", 360, 300);
            g3d.fillRect(340, 300, 10, 10);
      
      
      
        //hadir
        gp.moveTo(270, 550);
        gp.lineTo(270, 550-(hdir*2));
        gp.lineTo(300, 550-(hdir*2));
        gp.lineTo(300, 550);
        b.drawString("Kehadiran", 260, 565);
        //hadir
      
        //tugas
        gp.moveTo(330, 550);
        gp.lineTo(330, 550-(tgs*2));
        gp.lineTo(360, 550-(tgs*2));
        gp.lineTo(360, 550);
        b.drawString("Tugas",  330, 565);
        //tugas
      
        //uts
        gp.moveTo(390, 550);
        gp.lineTo(390, 550-(uts*2));
        gp.lineTo(420, 550-(uts*2));
        gp.lineTo(420, 550);
        b.drawString("UTS", 390, 565);
        //uts
      
        //uas
        gp.moveTo(450, 550);
        gp.lineTo(450, 550-(uas*2));
        gp.lineTo(480, 550-(uas*2));
        gp.lineTo(480, 550);
        b.drawString("UAS", 450, 565);
        //uas
      
        g3d.draw(gp);
        g3d.fill(gp);
      
        //gp.lineTo(hasil, hasil);
      
      
        for(int i=0;i<200;i=i+20){
                int no = i;
                b.drawLine(250, 350+i, 250, 380+i);
                gp.moveTo(250, 350+i);
                gp.lineTo(600, 350+i);
                g3d.draw(gp);
            }
        b.drawLine(250, 550, 600, 550);  //garis
            b.drawString("0", 230, 560);
            b.drawString("10", 230, 540);
            b.drawString("20", 230, 520);
            b.drawString("30", 230, 500);
            b.drawString("40", 230, 480);
            b.drawString("50", 230, 460);
            b.drawString("60", 230, 440);
            b.drawString("70", 230, 420);
            b.drawString("80", 230, 400);
            b.drawString("90", 230, 380);
            b.drawString("100", 230, 360);
          
          
            String Words = "UNIVERSITAS PAMULANG";
         Font font = new Font("Arial",Font.PLAIN, 30);
         AttributedString as1 = new AttributedString(Words);
         as1.addAttribute(TextAttribute.FONT, font);
        // as1.addAttribute(TextAttribute.FOREGROUND, Color.blue, 0, 6);
       
         GradientPaint gdp;
    gdp = new GradientPaint(110,10,Color.blue,10,90,Color.red,true);
    g3d.setPaint(gdp);
    g3d.drawString(as1.getIterator(),300,250);
  
    String nama = "Muhammad Iskandar Zulkarnain";
    Font hurufnama = new Font("Arial",Font.PLAIN,20);
    AttributedString nama1 = new AttributedString(nama);
    nama1.addAttribute(TextAttribute.FONT, hurufnama);
  
    g3d.drawString(nama1.getIterator(),300,620);
      
      
    }

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