package oct2010;

/**
 *
 * @author CAN
 */


public class Main {

 public static long faktoriyel(long number) {
    if (number <= 1) 
      return 1; 
    else
     
      return number * faktoriyel(number - 1);
  }

    /**
     * @param args the command line arguments
     */

    public static void main(String[] args) {
        // TODO code application logic here
       for (int i = 0; i <= 5; i++)
      System.out.print(faktoriyel(i));
      
    }

}

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 *
 * @author CAN
 */

public class Main {


public static int validate(String input){
try
{
int output = Integer.parseInt (input);
return output;
}
catch (Exception e){
System.out.println(e.getMessage());
return -1;
}
} //end validate function

/**
* @param args
*/
public static void main(String[] args) throws IOException{
// TODO Auto-generated method stub


BufferedReader br = new BufferedReader (new InputStreamReader(System.in));//read the input from console

while(true){

System.out.print ( "\nNumara girin: " );

String input1 = br.readLine();

System.out.print ( "\n Numara girin: " );

String input2 = br.readLine();

int num1 = validate(input1);

int num2 = validate(input2);

if(num1 == -1 || num2 == -1){
System.out.println("Dogru int değeri girin...");
}
else{

System.out.println("\n1.Topla\n2.Çıkar\n3.Çarp\n4.Divide\n5.Çık");

System.out.print( "Seçim belirtin : ");

int option = Integer.parseInt(br.readLine());

switch(option){

case 1:

double addAnswer = num1 + num2;



break;

case 2:

int subAnswer = num1 - num2; value

System.out.println(num1+" - "+num2+" = "+subAnswer);

break;

case 3:

int mulAnswer = num1 * num2;

System.out.println(num1+" * "+num2+" = "+mulAnswer);

break;

case 4:


if(num2 != 0){

double divAnswer = (double)num1 / (double)num2;
double

System.out.println(num1+" / "+num2+" = "+divAnswer);

}else{

System.out.println ("Division by zero is not allowed!");
}

break;

case 5:

System.exit(0);

default:

System.out.println("Seçim yapınız...");

}
}


}

}
}

public class Fibonacci {
public static void main(String[] args) {
int n0 = 1, n1 = 1, n2; // Değişkenlere bağlangıc degerleri vermek
System.out.print(n0 + " " + n1 + " "); // Birinci ve ikinci değerler

for (int i = 0; i < 30; i++) { // İlk 30 Fib. sayısı için for döngüsü
n2 = n1 + n0; // Önceki terimle toplanması
System.out.print(n2 + " "); //ikinci sayının outputu
n0 = n1; // 1. sayıyı 2. ciye atamak
n1 = n2; // Güncel sayımızı önceki sayıya eşitlemek
}
System.out.println(); //Bitiş
}
}

// File (or directory) with old name
File file = new File("oldname");

// File (or directory) with new name
File file2 = new File("newname");

// Rename file (or directory)
boolean success = file.renameTo(file2);
if (!success) {
    // File was not successfully renamed
}

public static int width = 1400;
public static int height = 1400;

 
public void iodaImageResize() throws IOException {
        String src = "***/abc.jpg";
        String dest = "abc.jpg";
        scale(src, width, height, dest);
    }

    public void scale(String src, int width, int height, String dest)
            throws IOException {
        BufferedImage bsrc = ImageIO.read(new File(src));
        BufferedImage bdest =
                new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
        Graphics2D g = bdest.createGraphics();
        AffineTransform at =
                AffineTransform.getScaleInstance((double) width / bsrc.getWidth(),
                (double) height / bsrc.getHeight());
        g.drawRenderedImage(bsrc, at);
        ImageIO.write(bdest, "JPG", new File(dest));
    }

File dosya=new File("Deneme.txt");
if(!dosya.exists()){
dosya.createNewFile();
}