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ValerioBellic

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Dec 1st, 2016
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  1. package vettorequad;
  2. import java.io.*;
  3.  
  4. public class quadrato
  5. {
  6.  
  7. static InputStreamReader Input = new InputStreamReader(System.in);
  8. static BufferedReader tastiera = new BufferedReader(Input);
  9.  
  10.  
  11. private static double lato;
  12.  
  13.  
  14. public static void setlato()
  15. {
  16.  
  17. do
  18. {
  19. System.out.println("Inserisci il lato del quadrato");
  20.  
  21.  
  22. try
  23. {
  24.  
  25. String latoletto = tastiera.readLine();
  26. int lato = Integer.valueOf(latoletto).intValue();
  27.  
  28. }
  29.  
  30. catch (IOException E)
  31. {}
  32. if (lato<=0)
  33. {
  34. System.out.println("errore,devi inserire un numero positivo");
  35. }
  36.  
  37.  
  38. }
  39.  
  40. while (lato >= 0);
  41.  
  42. }
  43.  
  44.  
  45. public static double setperimetro()
  46. {
  47. double perimetro;
  48. perimetro = lato * 4;
  49. return perimetro;
  50. }
  51.  
  52. public static double setarea()
  53. {
  54. double area;
  55. area = lato * lato;
  56. return area;
  57. }
  58. }
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