If you are learning how to use Java, you might be familiar with the concept of a method. It is basically a group of methods that a class or object can call to perform one task. The most basic ways to call a method are through direct invocation, and by passing in a parameter to the method.
A method can also be called using the type’s static or instance methods. The static method is called when you declare a class, while the instance methods are called when you initialize a class.
If you are working on a project that requires you to call a method in a specific way, you should think about using a type method. A type method is an instance method that is called at run-time, but it can also be called on an object or a type.
We are using a type method to call a method like I did in the previous example, but to call a method in the exact same way that another class is doing it.
This is a pretty common method for getting your code to work. It’s called a method reference. We can see it being used with a method like String.toLowerCase(), which is how we get a string to lowercase. We can also see it being used with a method like Object.equals(), which is used to determine whether two objects are equal.
When we call a method, we usually call it with a reference to a method. For example, we can call a method like methodA.methodB(), and then pass a reference to methodB as the parameter.
The point of a method reference is to allow you to keep track of the method’s signature. The signature of the method is: MethodReference.method(…). The method signature for a methodreference in java is: MethodReference.method(…), and for the methodreference in java is: MethodReference.method(…).
The method signature can be a lot more complex. For example, an object’s method signature can be two or three parameters or a method signature can have many parameters.
One of my favorite things about Java is that it allows you to take a method signature and have the compiler figure it out.
In java, a method signature is a bunch of words with spaces between them. So if you have a method signature of “method(String param, String param2)”, then you can have the method signature look like “method(param, param2)”, which is much easier to figure out than it sounds.