import java.lang.*;class Employee
{
public boolean equals(Object other)
{
if( this.getClass() != other.getClass() )
{
System.out.println("不是同一个类");
return false;
}
else
{
System.out.println("是同一个类");
return true;
}
}
}
class Manager extends Employee
{
}
public class Empty
{
public static void main(String[]args)
{
Employee e1 = new Employee();
Manager e3 = new Manager();
e1.equals(e2);//提示这行有问题
}
}
{
public boolean equals(Object other)
{
if( this.getClass() != other.getClass() )
{
System.out.println("不是同一个类");
return false;
}
else
{
System.out.println("是同一个类");
return true;
}
}
}
class Manager extends Employee
{
}
public class Empty
{
public static void main(String[]args)
{
Employee e1 = new Employee();
Manager e3 = new Manager();
e1.equals(e2);//提示这行有问题
}
}
解决方案 »
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