You can find the minimum and maximum values of an array using for loops: Live Demo , ,

You can read the contents of a file using the Scanner class and You can find the comments in a particular line using contains() method. , Contents of the file HelloWorld − , Output ,

No, arrays are not primitive datatypes in Java. They are container objects which are created dynamically. All methods of class Object may be invoked on an array. They were considered as reference data types.

No, you cannot have both this() and super() in a single constructor.

Lambda expressions are introduced in Java 8. These are used primarily to define inline implementation of a functional interface, i.e., an interface with a single method only. Lambda expression eliminates the need of anonymous class and gives a very simple yet powerful functional programming capability to Java. , Live Demo , ,

You can access the private methods of a class using java reflection package. Step1: Instantiate the Method class of the java.lang.reflect package by passing the method name of the method which is declared private. Step2: Set the method accessible by passing value true to the setAccessible() method. Step3: Finally, invoke the method using the invoke() method. Example: ,

Java Generic methods and generic classes enable programmers to specify, with a single method declaration, a set of related methods, or with a single class declaration, a set of related types, respectively. Generics also provide compile-time type safety that allows programmers to catch invalid types at compile time.

In dynamic binding, the method call is bonded to the method body at runtime. This is also known as late binding. This is done using instance methods. Example: , Output: ,

A native method in Java is a method whose implementation is written in other languages such as c and c++. The ‘native’ keyword is used before a method to indicate that it is implemented in other language.

VM first looks for the main method (at least the latest versions) and then, starts executing the program including static block. Therefore, you cannot execute a static block without main method. , Since the above program doesn’t have a main method, If you compile and execute it you will get an error message. , If you want to execute static block you need to have Main method and, .....