Optional initializer is a useful technology in Java programming that allows developers to assign an initial value to a variable at the time of declaration. The relevance of this technology is evident in making the programming process more efficient and reducing the risk of runtime errors.

One of the biggest advantages of using an optional initializer is that it saves time and increases the readability of code. Since the initial value is assigned to the variable at the time of declaration, developers do not need to write additional code to assign values to variables later on. This saves time and makes the code more concise and easier to read.

In addition, using an optional initializer also reduces the risk of runtime errors by ensuring that the variable has a valid value from the beginning of the program. If a variable is not initialized, its value is set as null by default, which can result in null pointer exceptions when the variable is used in the program. Using an optional initializer eliminates this risk by ensuring that the variable is initialized with a valid value.

In conclusion, the optional initializer is a relevant technology in Java programming that offers numerous benefits, including increased efficiency, improved readability of code, and reduced risk of runtime errors. Its usage is recommended for all Java developers.