Java Collections CheckedSortedMap() Method with Examples

by Online Tutorials Library July 22, 2022

Java Collections checkedSortedMap() Method

The checkedSortedMap() is an inbuilt method of Java Collections class. This method is used to get a dynamically typesafe view of the specified sorted map.

Syntax

Following is the declaration of checkedSortedMap() method:

  public static <K,V> SortedMap<K,V> checkedSortedMap(SortedMap<K,V> m, Class<K> keyType, Class<V> valueType)  

Parameter

Parameter	Description	Required/Optional
m	It is the map for which a dynamically typesafe view is to be returned.	Required
keyType	It is the type of key that map m is permitted to hold.	Required
valueType	It is the type of value that map m is permitted to hold.	Required

Returns

The checkedSortedMap() method returns a dynamically typesafe view of the specified Sorted Map.

Exceptions

ClassCastException

Compatibility Version

Java 1.5 and above

Example 1

  import java.util.*;  public class CollectionsCheckedSortedMapExample1 {  public static void main(String[] args) {  //create map             SortedMap smap = new TreeMap();        //Insert values in the Map        smap.put(“TutorAspire”, 1100);        smap.put(“Hindi100”, 500);        smap.put(“SSSIT”, 1300);        smap.put(“ABCD”, 1200);        //Get type safe view of the sorted Map                 System.out.println(“Type safe view of the Sorted Map is: “+Collections.checkedSortedMap(smap,String.class,Integer.class));        }  }  ,>,>

Test it Now

Output:

Type safe view of the Sorted Map is: {ABCD=1200, Hindi100=500, TutorAspire =1100, SSSIT=1300}

Example 2

  import java.util.*;  public class CollectionsCheckedSortedMapExample2 {  public static void main(String[] args) {  //create map             SortedMap smap = new TreeMap();        //Insert values in the Map        smap.put(1100, “TutorAspire”);        smap.put(500, “Hindi100”);        smap.put(1800, “SSSIT”);        smap.put(900, “ABCD”);        //Get type safe view of the sorted Map                 System.out.println(“Type safe view of the Sorted Map is: “+Collections.checkedSortedMap(smap,Integer.class,String.class));        }  }  ,>,>

Test it Now

Output:

Type safe view of the Sorted Map is: {500=Hindi100, 900=ABCD, 1100=TutorAspire, 1800=SSSIT}

Example 3

  import java.util.*;  public class CollectionsCheckedSortedMapExample3 {  public static void main(String[] args) {  //create map             SortedMap map = new TreeMap<>();        map = Collections.checkedSortedMap(map,Integer.class, String.class);        map.put(1100, “TutorAspire”);        map.put(500, “Hindi100”);        map.put(1800, “SSSIT”);        map.put(900, “ABCD”);              //Get type safe view of sorted map              System.out.println(“Map content: “+map);              SortedMap map2 = map;              map2.put(5,500);                      map2.put(6,200); //throws ClassCastException        }  }  ,>

Test it Now

Output:

Map content: {500=Hindi100, 900=ABCD, 1100=TutorAspire, 1800=SSSIT}  Exception in thread "main" java.lang.ClassCastException: Attempt to insert class java.lang.Integer value into map with value type class java.lang.String  at java.base/java.util.Collections$CheckedMap.typeCheck(Collections.java:3578)  at java.base/java.util.Collections$CheckedMap.put(Collections.java:3621)  at myPackage.CollectionCheckedSortedMapExample3.main(CollectionCheckedSortedMapExample3.java:15)

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Java Collections CheckedSortedMap() Method with Examples

Java Collections checkedSortedMap() Method

Syntax

Parameter

Returns

Exceptions

Compatibility Version

Example 1

Example 2

Example 3

Learning code online

Java Collections synchronizedNavigableSet() Method with Examples

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