1-) Java - JTABLODAKİ ORTALAMA GELİRİ BULAN PROGRAM

public class JTable1 extends javax.swing.JFrame {

public JTable1() { initComponents();

String col_name[] = {"Ad", "Soyad", "Gelir", "Cinsiyet"};

Object data[][] = {

{"Metin", "Oktay", 1905, "E"},

{"Selçuk", "İnan", 1000, "E"},

{"Işıl", "Alben", 500, "K"},

{"Felipe", "Melo", 3000, "E"},

{"Wesley", "Sneijder", 3750, "E"},

{"Sancho", "Lyttle", 750, "K"},

{"FerNando", "Muslera", 2850, "E"},

{"Nuria", "Martinez", 150, "K"},

{"Hamit", "Altıntop", 2200, "E"},

{"Semih", "Kaya", 1500, "E"}, };

TableModel tm = new DefaultTableModel(data, col_name);

jTable1.setModel(tm); }

private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {

TableModel tm=jTable1.getModel();

int j,toplam=0,count=0;

for(j=0;j

if(tm.getColumnName(j).equals("Gelir"))

break; }

for(int i=0;i

if(tm.getValueAt(i, j)!=null) {

toplam=toplam+Integer.valueOf(tm.getValueAt(i, j).toString());

count++; } }

jLabel1.setText("Ortalama Gelir= "+(toplam/count)); }