treemap structure java code example
Example 1: TreeMap in java
import java.util.Map;
import java.util.TreeMap;
public class TreeMapExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
tm.put(1000, "Apple");
tm.put(1002, "Raspberry");
tm.put(1001, "Velvet apple");
tm.put(1003, "Banana");
for(Map.Entry obj : tm.entrySet())
{
System.out.println(obj.getKey() + " " + obj.getValue());
}
}
}
Example 2: what is treemap
- TreeMap doesn't have null key and keys are sorted
Can contain only unique keys and keys are sorted in ascending order.