创建person类，并设置name,sex及age三个private属性，设置无参构造方法和带参数的构造方法；设置setname(),setsex(),setage()方法给三个属性赋值，并用getn

ame(),getsex(),getage()方法获取属性值。代码如下：

public class Person {
    private String name;
    private String sex;
    private int age;

    public Person() {
    }

    public Person(String name, String sex, int age) {
        this.name = name;
        this.sex = sex;
        this.age = age;
    }

    public void setname(String name) {
        this.name = name;
    }

    public void setsex(String sex) {
        this.sex = sex;
    }

    public void setage(int age) {
        this.age = age;
    }

    public String getname() {
        return name;
    }

    public String getsex() {
        return sex;
    }

    public int getage() {
        return age;
    }
}