使用泛型后，怎么添加數(shù)組
public class ListTest {
public List<Course> courseToSelect;
public ListTest()
{
this.courseToSelect=new ArrayList<Course>();
}
public void addTest()
{
Course[] cr1={new Course("2","化學(xué)"),new Course("1","數(shù)學(xué)")};
courseToSelect.addAll(cr1);
}
public void forEach()
{
for(Course cou:courseToSelect)
{
System.out.println("課程"+cou.id+":"+cou.name);
}
}
public static ?void main(String[] args)
{
ListTest it=new ListTest();
it.addTest();
it.forEach();
}
}
2016-03-31
courseToSelect.addAll(Arrays.asList(cr1));
2016-03-31
Course[] course2 = { new Course("5", "高等數(shù)學(xué)"), new Course("6", "大學(xué)英語") };
// 將一個數(shù)組轉(zhuǎn)化為一個List對象，這個方法會返回一個ArrayList類型的對象
courseToSelect.addAll(2, Arrays.asList(course2));
數(shù)組要轉(zhuǎn)化為List對象，然后再給出你想要插入的起始位置