public class Student { private String id; private String name; private int age;

public Student(String id, String name, int age) {
    this.id = id;
    this.name = name;
    this.age = age;
}

@Override
public String toString() {
    return "Student{" +
            "id='" + id + '\'' +
            ", name='" + name + '\'' +
            ", age=" + age +
            '}';
}

public static void main(String[] args) {
    Student student = new Student("201000802011", "黎明", 20);
    System.out.println(student.toString());
}

}

1定义一个Student 建立属性:学号名字和年龄并建立有参的构造方法。 2在该类中创建对象对象信息为:201000802011黎明 20 3重写toString方法显示该对象的信息。用Java 进行编程

原文地址: https://www.cveoy.top/t/topic/bnDB 著作权归作者所有。请勿转载和采集!

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