Java Optional list foreach

Using the Logical OR operator (‘||’) In this method, the optional parameter is “Logically ORed ” with the default value within the body of the function. In the example below, if the value of b is undefined, 2 is passed instead.

Optional parameters are defined at the end of the parameter list , after any required parameters.

Optional parameters are defined at the end of the parameter list , after any required parameters.

There’s no concept of a passing method as a parameter in Java from scratch . However, we can achieve this by using the lambda function and method reference in Java 8.

There’s no concept of a passing method as a parameter in Java from scratch . However, we can achieve this by using the lambda function and method reference in Java 8.

There are no optional parameters in Java . What you can do is overloading the functions and then passing default values. Show activity on this post. VarArgs and overloading have been mentioned.

Using the Logical OR operator (‘||’) In this method, the optional parameter is “Logically ORed ” with the default value within the body of the function. In the example below, if the value of b is undefined, 2 is passed instead.