The
containsKey(value) method of
Properties class is used to check if this Properties object contains any mapping of this Key for any key present in it. It takes this value to be compared as parameter and returns a boolean value as result.
Syntax:
public Object containsKey(Object value)
Parameters: This method accepts a parameter
value which is the key to be searched in this Properties.
Returns: This method returns a
boolean value stating the result whether this key is present in this Properties object or not.
Below programs illustrate the containsKey(value) method:
Program 1:
Output:
Current Properties: {Book=500, Mobile=5000, Pen=10, Clothes=400}
Is Pen present: true
Program 2:
