examples of Hash Table in java programming

examplegeek
2022-05-24
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Hash Table:

  • Like the vector key, methods of the class are synchronized.
  • Thread safety and therefore slows the performance.
  • It doesn’t allow anything that is null.

Example:

public class Fruit{
public static void main(String[ ]args){
Hashtable<Sting,String> names =new Hashtable<String,String>( );
names.put(“key1”,“cherry”);
names.put(“key2”,“apple”);
names.put(“key3”,“banana”);
names.put(“key4”,“kiwi”);
names.put(“key2”,“orange”);
System.out.println(names);
}
 }

Output:

{key2=apple, key1=cherry,key4=kiwi, key3=banana}

Duplicate keys are not allowed.

Java programming,
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