类与对象

/**
 * 定义一个Person类
 */
public class Person {
  /**
   * 属性
   */
  private String name;
  private int age;
  private char gender;
  /**
   * 构造方法
   */
  public Person() {
  }

  public Person(String name, int age, char gender) {
    this.name = name;
    this.age = age;
    this.gender = gender;
  }
  /**
   * getter setter方法
   */
  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 char getGender() {
    return gender;
  }

  public void setGender(char gender) {
    this.gender = gender;
  }
  /**
   * 普通方法
   */
  void eat(){}
  void sleep(){}

  @Override
  public String toString() {
    return "Person{" +
      "name=‘" + name + ‘\‘‘ +
      ", age=" + age +
      ", gender=" + gender +
      ‘}‘;
  }
}