Student.java
private int age;
private String name;
public Student(int age, String name){
this.name = name;
this.age = age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public String toString(){
return "age:" + age + "\t" + "Name:" + name;
}
Main.java
public class Main {
public static void main(String[] args) {
Student stu1 = new Student(48, "jre");
Student stu2 = new Student(25, "JIe");
Student stu3 = new Student(47, "Lil");
Student stu4 = new Student(40, "Lilith");
Student stu5 = new Student(20, "Jack");
LinkedList linkedList = new LinkedList();
linkedList.add(stu5);
linkedList.add(stu4);
linkedList.add(stu3);
linkedList.add(stu2);
linkedList.add(stu1);
Collections.sort(linkedList, (Student o1, Student o2) ->{
if (o1.getAge() > o2.getAge()){
return 1;
}else if (o1.getAge() == o2.getAge()){
return 0;
}else
return -1;
});
int index = Collections.binarySearch(linkedList, stu2);
System.out.println("Index:" + index);
System.out.println(":" + linkedList.get(index));
Iterator it = linkedList.iterator();
it.forEachRemaining(e -> System.out.println(e));
}
}