public void testListContains() {

// 取得備選序列的第0個(gè)元素

Course course = courseToSelect.get(0);

// 打印輸出courseToSelect是否包含course對(duì)象

System.out.println("取得對(duì)象:" + course.getName());

System.out.println("備選課程中是否包含課程:" + course.getName() + ","

+ courseToSelect.contains(course));

// 創(chuàng)建新的課程對(duì)象，id和名稱(chēng)，與course對(duì)象完全一樣

Course course2 = new Course(course.getId(), course.getName());

System.out.println("新創(chuàng)建課程:" + course2.getName());

System.out.println("備選課程中是否包含課程:" + course2.getName() + ","

+ courseToSelect.contains(course2));

取得對(duì)象:數(shù)據(jù)結(jié)構(gòu)

備選課程中是否包含課程:數(shù)據(jù)結(jié)構(gòu),true

新創(chuàng)建課程:數(shù)據(jù)結(jié)構(gòu)

備選課程中是否包含課程:數(shù)據(jù)結(jié)構(gòu),true

為什么我創(chuàng)建新的Course對(duì)象course2 ?輸出還是

true呀