So, i created a method in a class called Lotion and I named it read() this method takes the user's input. I was told by my instructor that the method read() had to be private. However, he said that his demo/tester class should be able to access the method read(). He gave us a hint saying we had to use a constructor. But unfortunately, I still don't understand how it's supposed to work. Can Someone please explain.
Thanks in advance.
Aryan Kumar
04-Jul-2023Sure. To access a private method in another class using a constructor in Java, you can use the following steps:
getDeclaredMethod()
method to get the private method from the first class.invoke()
method to invoke the private method on the object of the first class.Here is an example of how to access a private method in another class using a constructor in Java:
Java
This code will first create an object of the
PrivateMethodAccess
class. Then, it will create an object of thePrivateMethodAccessAccessor
class and pass the object of thePrivateMethodAccess
class as a parameter to the constructor. In the constructor of thePrivateMethodAccessAccessor
class, theprivateMethod()
method from thePrivateMethodAccess
class will be invoked. Finally, the output of theprivateMethod()
method will be printed to the console.To run the code, you can save it as a Java file and then compile and run it from the command line. For example, if you save the code as
PrivateMethodAccess.java
, you can compile and run it by typing the following commands into the command line:Code snippet
The code will then print the following message to the console:
Code snippet
Anonymous User
04-Feb-2015Your current code (as posted in comments)
This initializes your object by setting volume.
You can call this from the class constructor:
This way, when you create instances, it will automatically ask for user input and set the answer to an instance field.