Search
Rectangle
Square
Shape getShape(int height, int width)
Container
Zerg
Protoss
Terran
Race
Unit getUnit()
Game
getMyRace()
a = 10; b = a; c = b + 1; print c;
interface A { void f(D d); } class B implements A { public void f(D d) { d.g(this); } } class C implements A { public void f(D d) { d.h(this); } } interface D { void g(B b); void h(C c); }
List
Chunk
Node
Pair
class List { Chunk first; /* kod */ } class Chunk { int[] contents = new int[10]; int length; Chunk next; /* kod */ } class Node { int contents; Node next; /* kod */ } class Pair { int first; int second; Pair next; /* kod */ }
Cell
class Cell { int contents; void set(int c) { contents = c; } int get() { return contents; } }
begin a = 8 b = 9 r = 0 while a > 0 do begin r = r + b a = a – 1 end end
BlueCircle
BlueSquare
RedCircle
RedSquare
instanceof
getTypeId
void f(Vehicle v) { if (v instanceof Car) v.g(); else v.h(); }
InfiniteArray
class InfiniteArray { /* atributy */ void set(int index, int value) { /* kod */ } int get(int index) { /* kod */ } }
Zajic
Bob
Bobek
Vecernicek.zacni
interface Zajic { void vstavej(); void spi(); } class Bob implements Zajic { public void vstavej() { /* kod */ } public void spi() { /* kod */ } } class Bobek implements Zajic { public void vstavej() { /* kod */ } public void spi() { /* kod */ } } class Vecernicek { void zacni(Zajic z) { if (z instanceof Bob) z.vstavej(); if (z instanceof Bobek) z.spi(); } }
Fraction
Fraction get(int n, int d)
n
d
HashMap
class Fraction { int nominator, denominator; Fraction(int n, int d) { nominator = n; denominator = d; } Fraction times(Fraction f) { return new Fraction( nominator * f.nominator, denominator * f.denominator); } }
interface A { B getB(); C getC(); } interface B {} interface C {} class D implements B {} class E implements B {} class F implements C {} class G implements C {} class H implements A { public B getB() { return new D(); } public C getC() { return new F(); } } class I implements A { public B getB() { return new E(); } public C getC() { return new G(); } } class J { A a = new H(); void h() { a = new H(); } void i() { a = new I(); } A getA() { return a; } }
static Number getNumber(int re, int im)
getNumber(1, 2)
interface Number { int getReal(); int getImaginary(); } class Real implements Number { int value; Real(int v) { value = v; } public int getReal() { return value; } public int getImaginary() { return 0; } } class Complex implements Number { int re, im; Complex(int r, int i) { re = r; im = i; } public int getReal() { return re; } public int getImaginary() { return im; } }
Vladimir
Iljic
Lenin
createStatement
Statement
getConnection
Connection con = DriverManager.getConnection ("jdbc:myDriver:wombat","myLogin","myPassword"); Statement stmt = con.createStatement();
A + B
A – B
A * B
Sort
class Sorter { static void bubbleSort(int[] array) { /* kod */ } static void quickSort(int[] array) { /* kod */ } static void heapSort(int[] array) { /* kod */ } Sort s = new BubbleSort(); void setPreferredSortType(int type) { if (type == 1) s = new BubbleSort(); if (type == 2) s = new QuickSort(); if (type == 3) s = new HeapSort(); } void sort(int[] array) { s.sort(array); } } interface Sort { void sort(int[] array); } class BubbleSort implements Sort { public void sort(int[] array) { Sorter.bubbleSort(array); } } class QuickSort implements Sort { public void sort(int[] array) { Sorter.quickSort(array); } } class HeapSort implements Sort { public void sort(int[] array) { Sorter.heapSort(array); } }
Triangle
class Triangle { TriangleState s; void visit(TriangleVisitor v) { /* … */ } /* ... */ } interface TriangleVisitor { void visitRectangular(Triangle t); void visitObtuse(Triangle t); void visitAcute(Triangle t); }