2
package Comparar;
import java.util.*;
public class Exercici {
public void Exercici(){
}
public static <E extends Comparable <E>> int numMinors(E e, Iterator<E> it){
int numMenors = 0;
while(it.hasNext()){
int comparacio = e.compareTo(it.next());
if (comparacio == -1){
numMenors += 1;
}
}
return numMenors;
}
public static <E extends Comparable <E>> int numMinors(Comparator<E> comp, E e, Iterator<E> it){
int numMenors =0;
while (it.hasNext()){
int comparacio = comp.compare(e, it.next());
if(comparacio == -1){
numMenors += 1;
}
}
return numMenors;
}
}
單元測試類：JUnit測試不承認我的功能（通用功能）
import java.util.*;
import org.junit.After;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import static org.junit.Assert.*;
public class ExerciciTest {
public ExerciciTest() {
}
@Test
public void compararCosesComparables() {
int num = 0;
Bottle b1 = new Bottle(0.33, 10, "Agua de Oro", "Dubai");
Bottle b2 = new Bottle(1.5, 1, "asdf", "Rabat");
Bottle b3 = new Bottle(2.5, 1.5, "qwerty", "Londres");
Bottle b4 = new Bottle(5, 2, "poiuy", "Paris");
Bottle b5 = new Bottle(2.5, 2, "Botella", "EEUU");
List<Bottle> alb = new ArrayList<>();
Iterator<Bottle> it = alb.iterator();
alb.add(b1);
alb.add(b2);
alb.add(b3);
alb.add(b4);
num = numMinors(b5, it); //Error cannot find symbol
}
@Test
public void compararCosesAmbComparador() {
int num = 0;
Bottle b1 = new Bottle(0.33, 10, "Gold water", "Dubai");
Bottle b2 = new Bottle(1.5, 1, "asdf", "Rabat");
Bottle b3 = new Bottle(2.5, 1.5, "qwerty", "Londres");
Bottle b4 = new Bottle(5, 2, "poiuy", "Paris");
Bottle b5 = new Bottle(2.5, 2, "Botella", "EEUU");
ArrayList<Bottle> alb = new ArrayList<>();
BottleComparator comp = new BottleComparator();
Iterator<Bottle> it = alb.iterator();
alb.add(b1);
alb.add(b2);
alb.add(b3);
alb.add(b4);
num = numMinors(comp, b5, it); //Error cannot find symbol
}
}
所以我得到了3個班，BottleComparator它實現了比較，瓶，它實現可比性和exercici這是包含我被要求做的方法的類。
問題是測試類似乎不能識別我的函數numMinors，我已經嘗試將所有文檔放在另一個包中，並關閉項目並再次打開它。任何線索？
（我仍然需要投入對測試斷言功能）
錯誤消息：
找不到符號
符號：方法numMinors（......）
位置：類exerciciTest