Copy all elements in Java TreeSet to an Object Array
java 8object oriented programmingprogramming
Create a TreeSet and add elements −
TreeSet<String> tSet = new TreeSet<String>();
tSet.add("TV");
tSet.add("Radio");
tSet.add("Internet");
Now, let us copy it to object array −
Object[] arr = tSet.toArray();
for (Object ob: arr) {
System.out.println(ob);
}
The following is an example to copy all elements in TreeSet to an Object Array −
示例
import java.util.*;
public class Demo {
public static void main(String args[]){
TreeSet<String> tSet = new TreeSet<String>();
tSet.add("TV");
tSet.add("Radio");
tSet.add("Internet");
System.out.println("TreeSet elements = "+tSet);
Object[] arr = tSet.toArray();
for (Object ob: arr) {
System.out.println(ob);
}
}
}
输出
TreeSet elements = [Internet, Radio, TV] Internet Radio TV
