Check the esistence of value in Hashtable
Check the esistence of value in Hashtable
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In this program we will check the existence of key in the table. Contains () is used to check the existence of key .
Object of Boolean Exists is used to call the Contain method .
Conatin method along with the parameter is used .
The key must be paased to the method as the parameter to check its existence.
Conatin method along with the parameter is used .
The key must be paased to the method as the parameter to check its existence.
package Example;
import java .util.Hashtable;
public class Hashtablvalueexistance {
public static void main(String[] args) {
Hashtable tb = new Hashtable();
tb.put("1", "one");
tb.put("11", "Eleven");
tb.put("12", "Twelve");
boolean blnExists =tb.containsKey("thirteen");
System.out.println("The key exists in hashtable : " +blnExists);
}
}
The key exists in hashtable : false
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