Object类toString示例

toString方法

private String name;
private int age;
private char sex;

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 getSex() {
return sex;
}

public void setSex(char sex) {
this.sex = sex;
}

public void eat(){

}

@Override
public String toString() {
return "Student [name=" + name + ", age=" + age + ", sex=" + sex + "]";
}

public static void main(String[] args) {

Student s1 = new Student();
s1.setName("小明");
s1.setAge(20);
s1.setSex('男');

System.out.println(s1);
System.out.println(s1.toString());// 默认调用了Object类的toString方法

}