我是 Java 的初学者,我在使用 Comparable 按名称对 Employee 对象进行排序时遇到问题。我一直在阅读 Java 文档,但运气不佳。我正在寻找一些指导来让我走上正确的轨道。
public class Employee implements Comparable<Employee> {
private String name ="No name yet";
Task task;
public Employee(String setName) {
name = setName;
}
...
public int compareTo(Employee object) {
Employee emp = (Employee) object;
return this.name.compareTo(emp.name);
}
我试图像这样调用比较方法,但我不确定这是正确的。
public static void main(String[] args){
Employee[] emp = new Employee[4];
emp[0] = new HourlyEmp("Green", 22.50, 40);
emp[1] = new ExemptEmp("White", 1000.00);
emp[2] = new ExemptEmp("Black", 1100.00);
emp[3] = new ExemptEmp("Brown", 1346.15);
Array.sort(emp); <<--ERROR: The method sort(Employee[]) is undefined
for the type Array
printReport("Employee list sorted on names", emp);
任何帮助将不胜感激。谢谢!