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Lampada com watts java

Oct 1st, 2018
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  1. public class lampadawatts {
  2. boolean estadoDaLampada = false;
  3. int watts = 35;
  4.  
  5. void acender(){
  6. estadoDaLampada = true;
  7. }
  8. void apaga(){
  9. estadoDaLampada = false;
  10. }
  11. void mostrarEstado(){
  12. if(estadoDaLampada) {
  13. System.out.println("A lampada está ligada!");
  14. }else{
  15. System.out.println("A lampada está desligada!");
  16. }
  17. }
  18. boolean éEconomica(){
  19. if(watts < 40){
  20. return true;
  21. }
  22. else{
  23. return false;
  24. }
  25. }
  26. }
  27.  
  28. class TesteLampadaw {
  29. public static void main(String[] args) {
  30. lampadawatts lampada = new lampadawatts();
  31. lampada.mostrarEstado();
  32. lampada.acender();
  33. lampada.mostrarEstado();
  34. lampada.éEconomica();
  35.  
  36. }
  37. }
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