algoritma dan pemograman 3 (program 2)

Program 2

/*

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 * and open the template in the editor.

 */

package phytagoreantriplettoy;

/**

 *

 * @author Syaefa

 */

public class PhytagoreanTripletToy {

    private int number=0;

    private int numberOfTriplet=0;

    final int MAX_OF_TRIPLETS = 100;

    private int[] tripletA = new int [MAX_OF_TRIPLETS];

    private int[] tripletB = new int [MAX_OF_TRIPLETS];

    private int[] tripletC = new int [MAX_OF_TRIPLETS];

    public PhytagoreanTripletToy(int number) {

        this.number = number;

        bruteForce();

    }

    public int getNumberOfTriplet() {

        return numberOfTriplet;

    }

    public int getNumber() {

        return number;

    }

    public void bruteForce () {

        for (int i=1;i<=number;i++) {

            for (int j=1;j<=number;j++) {

                for (int k=1;k<=number;k++) {

                    if (i*i == (j*j + k*k)) {

                        tripletA[numberOfTriplet] = i;

                        tripletB[numberOfTriplet] = j;

                        tripletC[numberOfTriplet] = k;

                        numberOfTriplet++;

                        if (numberOfTriplet == MAX_OF_TRIPLETS) return;

                    }

                }

            }

        }

    }

    public String toString() {

        String str="";

        for (int i=0;i<numberOfTriplet;i++)

            str += tripletA[i]+"\t"+tripletB[i]+"\t"+tripletC[i]+"\n";

        return str;

    }

    static void test () {

        System.out.println(new PhytagoreanTripletToy(10));

    }

    public static void main(String[] args) {

        test();

    }

}

    /**

     * @param args the command line arguments

     */

        // TODO code application logic here

    public String getGeometry() {

        return "Lingkaran";

    }

    public double area () {

        return PI * radius * radius;

    }

    public double circumference () {

        return 2.0 * PI * radius;

    }

}

    /**

     * @param args the command line arguments

     */

        // TODO code application logic here

aloritma dan pemograman 3

Program 1

/*

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 * and open the template in the editor.

 */

package polymorphismToyJava;

public class PolymorphismToyJava {

    static void test(){

        RectangleToy theRectangle = new RectangleToy(100,200);

        SquareToy theSquare = new SquareToy(100);

        CircleToy theCircle = new CircleToy(100);

        printGeometry(theRectangle);

        printGeometry(theSquare);

        printGeometry(theCircle);

     }

    public static void main(String[]args){

            test();

    }

static void printGeometry(GeometryToy theG) {

    System.out.println("======================================");

    System.out.println("Geometry          :"+theG.getGeometry());

    System.out.println("Luas geometri     :"+theG.area());

    System.out.println("Keliling geometri :"+theG.circumference());

 }

}

abstract class GeometryToy{

    abstract public String getGeometry();

    abstract public double area();

    abstract double circumference();

}

class RectangleToy extends GeometryToy{

    double width,height;

    public RectangleToy(double newWidht, double newHeight){

        width = newWidht;

        height = newHeight;

    }

public String getGeometry(){

    return "Persegi Panjang";

    }

public double area() {

    return width * height;

}

public double circumference (){

    return 2 * (width + height);

 }

}

class SquareToy extends GeometryToy {

    double side;

    public SquareToy (double newSide){

        side = newSide;

   }

    public String getGeometry() {

        return "Bujur Sangkar";

 }

    public double area() {

        return side * side;

    }

    public double circumference(){

        return 4 * side;

    }

}

class CircleToy extends GeometryToy {

    final double PI=3.14159;

    double radius;

    public CircleToy (double newRadius) {

        radius = newRadius;

   }

    public String getGeometry() {

        return "Lingkaran";

    }

    public double area () {

        return PI * radius * radius;

    }

    public double circumference () {

        return 2.0 * PI * radius;

    }

}

    /**

     * @param args the command line arguments

     */

        // TODO code application logic here