2.编程题:
要求:
1).Person类有name,age,salary属性,要求实现至少两个构造方法,并且属性私有,提供对应的getter、setter。
2).覆写toString方法,要求在System.out.println()函数中传递Person对象能打印出三个属性值而不是对象地址。
3).覆写equals方法,要求两个Person类对象的值相同时返回true。
class Person1
{
private String name;
private int age;
private double salary;
public Person1(String name,int age,double salary)
{
this.name = name;
this.age = age;
this.salary = salary;
}
public Person1()
{
System.out.println("员工信息");
}
public void setName(String name)
{
this.name = name;
}
public String getName()
{
return name;
}
public void setAge(int age) {
this.age = age;
}
public int getAge()
{
return age;
}
public void setSalary(double salary)
{
this.salary = salary;
}
public double getSalary()
{
return salary;
}
@Override
public String toString()
{
return "名字:"+this.name +" 年龄:"+this.age+"工资:"+this.salary;
}
@Override
public boolean equals(Object obj)
{
if(obj == null)
return false;
if(this == obj)
return true;
if(!(obj instanceof Person1))
return false;
Person1 person = (Person1) obj ; // 向下转型,比较属性值
return this.name.equals(person.name) && this.age==person.age &&this.salary == person.salary;
}
}
public class project_0405
{
public static void main(String[] args)
{
Person1 per = new Person1("张三",22,10000);
Person1 per1 = new Person1("张三",22,10000);
System.out.println(per);
System.out.println(per.equals(per1));
}
}