/*

• 2021/5/12/dome03
• */
  @FunctionalInterface
  interface IMath{
  int add(int a,int b);
  }
  public class Circle{
  public static void main(String[] args) {
  IMath shili = ( a ,b) -> (a + b );
  System.out.println(shili.add(1,2));
  }
  }

/*

• @ddate 2021/5/12/adome04
• */
  interface IMyMessage<P,R>{
  R int2srtring(P zhengshu);
  }
  //静态方法的使用
  public class Dome04 {
  public static void main(String[] args) {
  IMyMessage<Integer,String>shili=(zhengshu )-> zhengshu+"";
  String str =shili.int2srtring(50000);
  System.out.println(str.length());
  }

}

/*

• @date2021/5/12/dome05
• */
  @FunctionalInterface
  interface IMyMessage1<R>{
  R zhuandaxie();

}
public class Dome05 {
public static void main(String[] args) {
IMyMessage1<String>shili="hello"::toUpperCase;
System.out.println(shili.zhuandaxie());
}
}

/*

• 2021/5/12/demo06

• */
  @FunctionalInterface
  interface IMyMessage6<R,P>{
  R compare (P p1 ,P p2);
  }

  public class Dome06 {
  public static void main(String[] args) {
  //
  IMyMessage6<Integer ,String> message6 = String::compareTo;
  System.out.println(message6.compare("后" ,"要"));
  }
  }

/*

• 2021/5/12/demo07
• /
  @FunctionalInterface
  interface IMyPerson<R,PN,PA>{
  R message(PN name ,PA age);
  }
  public class Demo07 {
  public static void main(String[] args) {
  //引用构造方法
  IMyPerson<Student ,String ,Integer> shili = Student::new;
  System.out.println(shili.message("jackma",50));
  }
  }
  。。。。。。。。。。。
  /
• 2021/5/12/demo07
• */

public class Student {
private String name;

public String getName() {
    return name;
}

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

public int getAge() {
    return age;
}

private int age ;

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

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

}