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Jul 17th, 2019
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  1. //Figure
  2.  
  3. import java.util.Scanner;
  4.  
  5. public class Figure {
  6. public static void main(String[] args) {
  7. System.out.println("Введите высоту фигуры, фигура не должна быть выше 4-х звёздочек.");
  8. Scanner scanner = new Scanner(System.in);
  9. int h = scanner.nextInt();
  10. if(h>4 || h<1){
  11. System.out.println("Вы ввели неверное значение.");
  12. }else{
  13. for (int i = 0; i < h ; i++) {
  14. for (int j = 1; j <= i+1 ; j++) {
  15. System.out.print("*");
  16. }
  17. System.out.println();
  18. }
  19. for (int i = h-1; i >0 ; i--) {
  20. for (int j = i; j>=1; j--) {
  21. System.out.print("*");
  22. }
  23. System.out.println();
  24. }
  25.  
  26. }
  27.  
  28. }
  29.  
  30.  
  31. }
  32.  
  33.  
  34. // Numbers???
  35.  
  36.  
  37. public class Numbers {
  38. public static void main(String[] args) {
  39. for(int i = 1; i <= 100; i++)
  40. {
  41. boolean b = true;
  42. for(int j = 2; j < i; j++)
  43. {
  44. if(i % j == 0)
  45. b = false;
  46. }
  47. if(b)
  48. System.out.print(i + " ");
  49. }
  50. }
  51.  
  52. }
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