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VivianOlivian

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Sep 17th, 2019
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  1. import java.util.Scanner;
  2.  
  3. public class Calculator {
  4. public static void main(String[] args) {
  5. printToScreen("Старт программы", true);
  6. String numberOne = enterNum();
  7. String numberTwo = enterNum();
  8. printToScreen("Принял: ", false);
  9. printToScreen(numberOne, true);
  10. printToScreen("Принял: ", false);
  11. printToScreen (numberTwo, true);
  12. int firstNum = stringToInteger(numberOne);
  13. int secondNum = stringToInteger(numberTwo);
  14. int thirdNum = calcDifference(firstNum, secondNum);
  15.  
  16. printToScreen("Результат: ", false);
  17. printToScreen(String.valueOf(thirdNum), true);
  18. printToScreen("Конец программы", false);
  19. }
  20.  
  21. public static String enterNum() {
  22. Scanner scanner = new Scanner(System.in);
  23. printToScreen("Введите число:",false);
  24. return scanner.nextLine();
  25. }
  26.  
  27. public static int stringToInteger(String stringData) {
  28. return Integer.parseInt(stringData);
  29. }
  30.  
  31. public static int calcDifference(int firstNumber, int secondNumber) {
  32. printToScreen("Начинаю считать", true);
  33. return firstNumber - secondNumber;
  34. }
  35.  
  36. public static void printToScreen(String abraCadaBra, boolean addNewLine) {
  37. if (addNewLine) {
  38. System.out.println(abraCadaBra);
  39. } else {
  40. System.out.print(abraCadaBra);
  41. }
  42. }
  43. }
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