TreeMap headMap() method in java
import java.util.SortedMap;
import java.util.TreeMap;
public class TreeMapHeadMapMethodExample
{
public static void main(String[] args)
{
TreeMap<String, Integer> tm = new TreeMap<String, Integer>();
// map string values to integer keys
tm.put("mango", 65);
tm.put("apple", 63);
tm.put("grapes", 35);
tm.put("pineapple", 60);
tm.put("banana", 26);
System.out.println("Given TreeMap is: " + tm);
// create SortedMap for map head
SortedMap<String, Integer> sm = new TreeMap<String, Integer>();
sm = tm.headMap("pineapple");
// Getting map head
System.out.println("headmap is: " + sm);
}
}
4.27
10
import java.util.NavigableMap;
import java.util.TreeMap;
public class TreeMapHeadMapBooleanInclusiveMethod
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
NavigableMap<Integer, String> nm = new TreeMap<Integer, String>();
tm.put(96, "violet");
tm.put(93, "green");
tm.put(20, "yellow");
tm.put(36, "red");
tm.put(53, "blue");
// get head map inclusive 93
nm = tm.headMap(93, true);
System.out.println("Check values of TreeMap");
System.out.println("Value is: " + nm);
}
}
Thank you!
10
0
4
10
import java.util.SortedMap;
import java.util.TreeMap;
public class TreeMapHeadMapMethodExample
{
public static void main(String[] args)
{
TreeMap<Integer, String> tm = new TreeMap<Integer, String>();
// map string values to integer keys
tm.put(65, "mango");
tm.put(63, "apple");
tm.put(35, "grapes");
tm.put(60, "pineapple");
tm.put(26, "banana");
System.out.println("Given TreeMap is: " + tm);
// create SortedMap for map head
SortedMap<Integer, String> sm = new TreeMap<Integer, String>();
sm = tm.headMap(60);
// Getting map head
System.out.println("headmap is: " + sm);
}
}
Thank you!
10
0
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