1.创建一个类名为Person的公共类，该类具有私有的name、age和address三个属性。并为该类编写每个属性的get和set方法，以及显示所有属性值的display()方法。创建一个Test测试类，创建Person类的相应对象，并调用相应的方法对属性进行赋值与获取值的操作。 2.创建一个Shape公共类，该类具有length和height两个属性，具有带参数和不带参数的构造方法和每个属性的get和set方法，编写通过两个属性计算该图形面积和周长的方法。并创建一个Test测试类，创建Shape类的对象，并计算相应对象的面积和周长。

1. Person类的代码如下： ```java public class Person { private String name; private int age; private String address; public Person() { } public Person(String name, int age, String address) { this.name = name; this.age = age; this.address = address; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getAge() { return age; } public void setAge(int age) { this.age = age; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public void display() { System.out.println("Name: " + name); System.out.println("Age: " + age); System.out.println("Address: " + address); } } ``` Test测试类的代码如下： ```java public class Test { public static void main(String[] args) { Person person = new Person(); person.setName("Tom"); person.setAge(20); person.setAddress("Beijing"); person.display(); } } ``` 2. Shape类的代码如下： ```java public class Shape { private double length; private double height; public Shape() { } public Shape(double length, double height) { this.length = length; this.height = height; } public double getLength() { return length; } public void setLength(double length) { this.length = length; } public double getHeight() { return height; } public void setHeight(double height) { this.height = height; } public double getArea() { return length * height; } public double getPerimeter() { return 2 * (length + height); } } ``` Test测试类的代码如下： ```java public class Test { public static void main(String[] args) { Shape shape = new Shape(5, 6); System.out.println("Area: " + shape.getArea()); System.out.println("Perimeter: " + shape.getPerimeter()); } } ```