Java Collections.checkedMap(Map <K,V> m, Class <K> keyType, Class <V> valueType)
Syntax
Collections.checkedMap(Map <K,V> m, Class <K> keyType, Class <V> valueType) has the following syntax.
public static <K,V> Map <K,V> checkedMap(Map <K,V> m, Class <K> keyType, Class <V> valueType)
Example
In the following code shows how to use Collections.checkedMap(Map <K,V> m, Class <K> keyType, Class <V> valueType) method.
// w ww .j a v a 2 s. c om
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
public class Main {
public static void main(String args[]) {
HashMap<String,String> hmap = new HashMap<String,String> ();
hmap.put("1", "A");
hmap.put("2", "B");
hmap.put("3", "C");
hmap.put("4", "from java2s.com");
// get typesafe view of the map
Map<String,String> tsmap = Collections.checkedMap(hmap,String.class,String.class);
System.out.println(tsmap);
}
}
The code above generates the following result.
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