Iterator it =ts.iterator();
while(it.hasNext()){
Object obj =it.next();
Person1 p = (Person1)obj;
System.out.println(p.getName()+"::"+p.getAge());
}
}
public static void method_reverce(){
TreeSet ts = new TreeSet();
ts.add(1);
ts.add(2);
ts.add(4);
ts.add(6);
ts.add(3);
Iterator it =ts.iterator();
while(it.hasNext()){
System.out.println(it.next());
}
}
}
class myCompare implements Comparator{
@Override
public int compare(Object o1, Object o2) {
Person1 p1 = (Person1)o1;
Person1 p2 = (Person1)o2;
int num =p1.getName().compareTo(p2.getName());
if(num==0){
//Integer i = new Integer(p1.getAge());
return new Integer(p1.getAge()).compareTo(new Integer(p2.getAge()));
}
return num;
}
}
class Person1 implements Comparable{
private String name;
private int age;
Person1(String name,int age){
this.name = name;
this.age = age;
}
public String getName(){
return name;
}
public int getAge(){
return age;
}
@Override
public int compareTo(Object obj) {
if(!(obj instanceof Person1)){
return -1;
}
Person1 p = (Person1)obj;
System.out.println(this.name+"...compareTo...."+p.name);
if(this.age> p.age)
return 1;
if(this.age==p.age)
{
return this.name.compareTo(p.name);
}
return -1;
}
}