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Aug 29th, 2015
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  1. String correct = "";
  2. while(true){
  3. try {
  4. String inputX = JOptionPane.showInputDialog("введите" + correct + "X член уравнения")
  5. Double parceX = Double.parceDouble(inputX);
  6. break;
  7. } catch(java.lang.NumberFormatException e) {
  8. correct = "корректно"
  9. }
  10. }
  11. correct = "";
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