1-) Java - KELİMEYİ DOSYANIN İÇİNDE ARAR

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

if(jFileChooser1.showOpenDialog(this)==JFileChooser.APPROVE_OPTION)

{ try {

BufferedReader br=new BufferedReader(new FileReader(jFileChooser1.getSelectedFile().getAbsolutePath()));

String line =br.readLine();

int sayac=0;

while(line!=null){

int i=line.indexOf(jTextField1.getText());

if(i!=-1)

{ JOptionPane.showMessageDialog(rootPane,i+".karakter ",sayac+".satır",1); ;}

line=br.readLine();

sayac++; }

br.close();

} catch (FileNotFoundException ex) {

Logger.getLogger(hafta52.class.getName()).log(Level.SEVERE, null, ex);

} catch (IOException ex) {

Logger.getLogger(hafta52.class.getName()).log(Level.SEVERE, null, ex); }} }