这是一个简单的示例，向您展示如何执行此操作：
public class Person {private String name;private String gender;private int age;Person(String name, String gender, int age){ this.name = name; this.gender = gender; this.age = age;}public void setName(String name){ this.name = name;}public void setGender(String gender){ this.gender = gender;}public void setAge(int age){ this.age = age;}public String getName(){ return this.name;}public String getGender(){ return this.gender;}public int getAge(){ return this.age;}public static void main(String[] args){ Person me = new Person("MyName","male",20); System.out.println("My name is:" + me.getName()); me.setName("OtherName"); System.out.println("My name is:" + me.getName());}}这将打印出：
我的名字是：MyName
我的名字是：OtherName
