JAVA LAB 7

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package javaapplication19;
import java.util.Arrays;
import java.lang.Integer;
import java.util.Comparator;
/**
 *
 * @author Student
 */
public class JavaApplication19 {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
       Integer [] v = {10, 13, 9, 5, 352, 25, 19, 8, 1000, 9999};
       Arrays.sort(v, new Comparator<Integer>(){;

           @Override
           public int compare(Integer c1, Integer c2) //o clasa care poate fi apelata si instanta o singura data in acest context
           {
               if(c1.toString().length() < c2.toString().length())
                   return -1;
               return 1;
           }
                                                });

       for(int i = 0; i < v.length; i++)
           System.out.println(v[i]);
    }

}

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ENUMERATIE
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package javaapplication21;

/**
 *
 * @author Student
 */
public enum CoffeSize {
    BIG(100), HUGE(200), OVERWHELMING(300)
            {
        void afisare()
        {
            System.out.println("b");
        }
    };

    CoffeSize(int ml){
    this.ml = ml;}

    public int getMl() {
        return ml;
    }


    private int ml;

    void afisare(){
    System.out.println("A");}

}


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 */
package JavaApplication24;

import java.io.FileNotFoundException;

/**
 *
 * @author Student
 */
public class ExpExample {

    /**
     */
    public void couldThrowExp() throws RuntimeException {
        throw new RuntimeException();
    }

    public void couldThrowExp2() throws FileNotFoundException {
        throw new FileNotFoundException();
    }

    public static void main(String[] args) {

        try {
            ExpExample expExample = new ExpExample();

            expExample.couldThrowExp();
            expExample.couldThrowExp2();
        } catch (Exception e) { //nu putem pune un exception e inainte de un runtimeException
            System.out.println("Expectie prinsa filenotfound");
        } catch (RuntimeException e) {
            System.out.println("Expectie prinsa runtimeexp");
        }

    }
}

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package lab7;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author Student
 */
public class Fisier {

	public static void main(String[] args) throws FileNotFoundException, IOException
        {
            File file = new File("in.txt");
            Scanner sc = new Scanner (file);
            ArrayList<Integer> list = new ArrayList<Integer>();
            while(sc.hasNext())
            {
                list.add(sc.nextInt());
            }
            Collections.sort(list);
            list.forEach(elem->System.out.println(elem));

            FileWriter scc = new FileWriter("out.txt");

            list.forEach(elem->{
                try {
                    scc.write(elem.toString());
                } catch (IOException ex) {
                    Logger.getLogger(Fisier.class.getName()).log(Level.SEVERE, null, ex);
                }
            });
            scc.close();

        }

}

Citire din fisier