V tem programu se boste naučili ustvarjati piramide, pol piramide, obrnjeno piramido, Pascalov trikotnik in Floydov trikotnik pojejo kontrolne izjave v Javi.
Če želite razumeti ta primer, morate poznati naslednje programske teme Java:
- Java za zanko
- Izjava Java, če … drugače
- Java while in do … while Loop
| Seznam izvorne kode |
|---|
| Koda za tiskanje trikotnikov z uporabo *, številk in znakov |
| Koda za tiskanje obrnjenih trikotnikov z uporabo * in številk |
| Koda za tiskanje polnih piramid |
| Koda za tiskanje Pascalovega trikotnika |
| Koda za tiskanje Floydovega trikotnika |
Programi za tiskanje trikotnikov z uporabo *, številk in znakov
Primer 1: Program za tiskanje polpiramide z uporabo *
* * * * * * * * * * * * * * *
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5; for (int i = 1; i <= rows; ++i) ( for (int j = 1; j <= i; ++j) ( System.out.print("* "); ) System.out.println(); ) ) )
Primer 2: Program za tiskanje polpiramide a z uporabo števil
1 1 2 1 2 3 1 2 3 4 1 2 3 4 5
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5; for (int i = 1; i <= rows; ++i) ( for (int j = 1; j <= i; ++j) ( System.out.print(j + " "); ) System.out.println(); ) ) )
Primer 3: Program za tiskanje polovične piramide z uporabo abeced
ABBCCCDDDDEEEEE
Izvorna koda
public class Main ( public static void main(String() args) ( char last = 'E', alphabet = 'A'; for (int i = 1; i <= (last - 'A' + 1); ++i) ( for (int j = 1; j <= i; ++j) ( System.out.print(alphabet + " "); ) ++alphabet; System.out.println(); ) ) )
Programi za tiskanje obrnjene polovične piramide z uporabo * in številk
Primer 4: Obrnjena polovična piramida z uporabo *
* * * * * * * * * * * * * * *
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5; for (int i = rows; i>= 1; --i) ( for (int j = 1; j <= i; ++j) ( System.out.print("* "); ) System.out.println(); ) ) )
Primer 5: Obrnjena polpiramida z uporabo števil
1 2 3 4 5 1 2 3 4 1 2 3 1 2 1
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5; for (int i = rows; i>= 1; --i) ( for (int j = 1; j <= i; ++j) ( System.out.print(j + " "); ) System.out.println(); ) ) )
Programi za prikaz piramide in obrnjene piramide z uporabo * in številk
Primer 6: Program za tiskanje celotne piramide z uporabo *
* * * * * * * * * * * * * * * * * * * * * * * * *
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5, k = 0; for (int i = 1; i <= rows; ++i, k = 0) ( for (int space = 1; space <= rows - i; ++space) ( System.out.print(" "); ) while (k != 2 * i - 1) ( System.out.print("* "); ++k; ) System.out.println(); ) ) )
Primer 7: Program za tiskanje piramide s pomočjo številk
1 2 3 2 3 4 5 4 3 4 5 6 7 6 5 4 5 6 7 8 9 8 7 6 5
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5, k = 0, count = 0, count1 = 0; for (int i = 1; i <= rows; ++i) ( for (int space = 1; space <= rows - i; ++space) ( System.out.print(" "); ++count; ) while (k != 2 * i - 1) ( if (count <= rows - 1) ( System.out.print((i + k) + " "); ++count; ) else ( ++count1; System.out.print((i + k - 2 * count1) + " "); ) ++k; ) count1 = count = k = 0; System.out.println(); ) ) )
Primer 8: Obrnjena polna piramida z uporabo *
* * * * * * * * * * * * * * * * * * * * * * * * *
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 5; for(int i = rows; i>= 1; --i) ( for(int space = 1; space <= rows - i; ++space) ( System.out.print(" "); ) for(int j=i; j <= 2 * i - 1; ++j) ( System.out.print("* "); ) for(int j = 0; j < i - 1; ++j) ( System.out.print("* "); ) System.out.println(); ) ) )
Primer 9: Natisnite Pascalov trikotnik
1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 6, coef = 1; for(int i = 0; i < rows; i++) ( for(int space = 1; space < rows - i; ++space) ( System.out.print(" "); ) for(int j = 0; j <= i; j++) ( if (j == 0 || i == 0) coef = 1; else coef = coef * (i - j + 1) / j; System.out.printf("%4d", coef); ) System.out.println(); ) ) )
Primer 10: Natisnite Floydov trikotnik.
1 2 3 4 5 6 7 8 9 10
Izvorna koda
public class Main ( public static void main(String() args) ( int rows = 4, number = 1; for(int i = 1; i <= rows; i++) ( for(int j = 1; j <= i; j++) ( System.out.print(number + " "); ++number; ) System.out.println(); ) ) )
