Java basics
first()
The first() method is used to return the first (lowest) element currently in this set.
Syntax:public E first()
Example:import java.util.TreeSet;
public class TreeSetDemo {
public static void main(String[] args) {
// creating a TreeSet
TreeSet treeadd = new TreeSet();
// adding in the tree set
treeadd.add(12);
treeadd.add(11);
treeadd.add(16);
treeadd.add(15);
// getting the first lowset element
System.out.println("First lowest element: "+treeadd.first());
}
}
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