public?boolean?equals(Object?obj){
	if(this?==?obj){
		return?true;
	}
	if(obj?==?null){
		return?false;
	}
	if(!(obj?instanceof?Course)){
		return?false;
	}
	Course?course?=?(Course)obj;
	if(this.name?==?null){
		if(course.name==?null){
			return?true;
		}
		else{
			return?false;
		}
	}else{
		if(this.name.equals(course.name)){
			return?true;
		}
		else{
			return?false;
		}
	}
}	
}

	public?void?testAdd(){
		//創建一個課程對象，并通過add方法添加進備選課程List中;
		?Course?cr1?=?new?Course("1","數據結構");
		?coursesToSelect.add(cr1);
		?Course?cr2?=?new?Course("2","C語言");
		?coursesToSelect.add(0,?cr2);
		?Course[]?course?=?{new?Course("3","離散數學?"),new?Course("4","匯編語言")};
		?coursesToSelect.addAll(Arrays.asList(course));
		?Course[]?course2?=?{new?Course("5","高等數學?"),new?Course("6","大學英語")};
		?coursesToSelect.addAll(2,Arrays.asList(course2));
	}
	public?void?testForEach(){
		System.out.println("有如下課程待選(通過For?each來遍歷):");
		for(Object?obj:coursesToSelect){
			Course?cr?=?(Course)?obj;
			System.out.println("課程："+cr.id+"："+cr.name);
		}
?}
	
	/*
	?*?測試List的contains方法
	?*?*/
	public?void?testListContains(){
		//取得備選課程的第0個元素
		Course?course=?coursesToSelect.get(0);
		//打印輸出是否包含course的對象
		System.out.println("取得課程："+course.name);
		System.out.println("備選課程中是否包含此課程"+coursesToSelect.contains(course));
		System.out.println("請輸入課程名稱");
		String?name?=?console.next();	
		Course?course2?=?new?Course();
		course2.name=?name;
		System.out.println("取得課程："+course2.name);
		System.out.println("備選課程中是否包含此課程"+coursesToSelect.contains(course2));
	}
	
	
	public?static?void?main(String[]?args)?{
		SetTest?st?=?new?SetTest();
		st.testAdd();
		st.testForEach();
		st.testListContains();
		}