Given the following Java code:​String str1 = “Java is useful!”;​String str2= “Java is cool”; write the result of to each of the following questions a). ​str1.length()​​b). ​str1. charAt(0)​c). ​str1.charAt(14)

Java code:

Java is widely used for building enterprise-level applications, web-based applications, mobile applications, and embedded systems. It has a vast standard library, which includes a wide range of classes and methods that simplify the development process. Java is also known for its security features, which allow developers to create applications that are protected from malicious attacks. Java is a versatile language that supports multiple programming paradigms, including procedural, functional, and object-oriented programming. It is easy to learn and has a vast developer community that provides extensive support and resources for developers.