java面向接口

//接口類

public interface ITest<T> {

	public boolean Compare(T t1, T t2);
}

 

   //实体类

public class Student2 {

	private String name;

	private int age;

	public void setAge(int age) {
		this.age = age;
	}

	public int getAge() {
		return age;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Student2(String name, int age) {
		super();
		this.name = name;
		this.age = age;
	}

}

 

 

public class Program2 {

	public static void main(String[] args) {
		Run();
	}

	public static void Run() {

		List<Student2> list = new ArrayList<Student2>();
		list.add(new Student2("aaa", 18));
		list.add(new Student2("bbb", 15));
		list.add(new Student2("ccc", 17));

		Student2 stu = ScanPDF(list, new ITest<Student2>() {
			public boolean Compare(Student2 t1, Student2 t2) {
				return t1.getAge() >= t2.getAge();
			}
		});
		System.out.println(stu.getAge());
	}

	public static Student2 ScanPDF(List<Student2> list, ITest c) {

		Student2 result = null;

		for (Student2 stu : list) {

			result = result == null ? stu : (c.Compare(result, stu) ? result : stu);
		}

		return result;

	}

}