berikut adalah sintaks dan output untuk polymorphysm :
package polymorphismtoy;
public class PolymorphismToy {
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("Geometri :"+theG.getGeometry());
System.out.println("Luas geometri :"+theG.area());
System.out.println("Keliling geometri :"+theG.circumference());
System.out.println("===============================================");
}
}
abstract class GeometryToy{
abstract public String getGeometry();
abstract public double area();
abstract public double circumference();
}
class RectangleToy extends GeometryToy {
double width, height;
public RectangleToy(double newWidth, double newHeight){
width = newWidth;
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;
}
}
Hasil Output :
Berikut adalah sintak untuk Phytagorean :
package phytagoreantriplettoy;
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();
}
}
Hasil Output :
