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- public class AreaCasa {
- //preço do metro quadrado
- double valorM2 = 1500;
- //calcula a área da casa
- double CasaRet(double l_sala, double c_quarto) {
- double area_s; //área da sala
- double area_q; //área do quarto
- double area_t = 0; //área do total
- if(l_sala < 0 || c_quarto < 0)
- System.out.println("Erro!");
- else{
- area_s = l_sala * l_sala; //calcula area da sala
- area_q = c_quarto * (l_sala/2); //calcula area do quarto
- area_t = area_s + 2 * area_q; //calcula a area total
- }
- return(area_t);
- }
- }
- public class AreaPiscina {
- double AreaPiscina(double raio){
- return((raio >= 0) ? Math.PI * Math.pow(raio, 2) : -1);
- }
- }
- public class Projeto {
- double Area(double lateral_1, double lateral_2, double pis_raio) {
- return(AreaCasa.CasaRet(lateral_1, lateral_2) + AreaPiscina.AreaPiscina(pis_raio));
- }
- public void main (String args[]) {
- System.out.println(Area(21.43, 33.4, 2.0));
- }
- }
- [user@localhost TesteJava]$ javac Projeto.java
- Projeto.java:3: error: non-static method CasaRet(double,double) cannot be referenced from a static context
- return(AreaCasa.CasaRet(lateral_1, lateral_2) +
- ^
- Projeto.java:4: error: non-static method AreaPiscina(double) cannot be referenced from a static context
- AreaPiscina.AreaPiscina(pis_raio));
- ^
- 2 errors
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