20 lines
518 B
Java
20 lines
518 B
Java
package com.inmind.private02;
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/*
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构造方法的使用
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*/
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public class Demo04 {
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public static void main(String[] args) {
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//无参构造方法，创建学生对象
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Student s1 = new Student();
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s1.study("python");
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//满参构造方法，创建学生对象
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Student s2 = new Student("张三",18,1);
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s2.study("java");
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//第一天报名只知道学号
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Student s3 = new Student(43);
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System.out.println(s3.getId());
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s3.study("C++");
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}
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}
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