This example shows how to search the minimum and maximum element in an array by using Collection.max() and Collection.min() methods of Collection class. , The above code sample will produce the following result. , Another sample example of the minimum and the maximum element in an array. , The above code sample will produce the following result. ,

A final variable can be explicitly initialized only once. A reference variable declared final can never be reassigned to refer to an different object. However, the data within the object can be changed. So, the state of the object can be changed but not the reference. With variables, the final modifier often is used with static to make the constant a class variable. , Compiler will t.....

As we all know, that java compiler ignores the comments written in the java code file. But using a trick we can execute the code present in a comment section. Consider the following program − , This will produce the following result − , The reason behind this behaviour is the use of \u000d character in comment which is a new line character. As Java compiler parses the new .....

Prior to java 8, interfaces can have following type of variables/methods. Constant variables Abstract methods So we cannot have method implementation in interfaces or more precisely a default implementation prior to Java 8. See the example. , You will see the following output. , In above example, each log method has its own implementation. With Java 8 interfaces can have following ty.....

Following are the different ways to create objects in Java. Using new keyword − Mostly used method. Call any constructor with new keyword to create an object. , Using Class.forName().newInstance() − Load the class using Class.forName() and then call its newInstance() method to create the object. , Using clone() method − Get the clone object of the required object by.....

Following are the notable differences between HashMap and ConcurrentHashMap classes in Java.   HashMap ConcurrentHashMap Synchronized HashMap is not synchronized. ConcurrentHashMap is synchronized. Thread Safe HashMap is not thread safe. ConcurrentHashMap is thread safe. Iterator type HashMap iterator is fail-fast and ArrayList throws ConcurrentModificationException if concurrent modi.....

We can read words in a file using BufferedReader class of Java and splitting the read data based on space character. See the example below: Consider the following text file in classpath. , , This will produce the following result − ,

Some of the prominently used networks in today’s world are: InternetIEEE 802.11 for Wireless LANRFID and Sensor NetworksInternet is a global collection of vast number of dissimilar networks that are interconnected together. Internet uses the TCP/IP protocol and provides varied services. The networks forming the Internet may be private, public, academic, commercial or government, but I.....

The host-to-network layer is the lowest layer of the TCP/IP model and is concerned with the physical transmission of data. It is also called a network interface layer or link layer. It can be considered as the combination of physical layer and data link layer of the OSI model. The functions of this layer are: It defines how bits are to be encoded into optical or electrical pulses.It accepts.....

The physical layer (Layer 1) deals with transmission of individual bits from one node to another over a physical medium. The main functions of the physical layer are as follows: It defines the physical characteristics and functions of the physical devices and interfaces so that transmission can occur. It states the number of pins in each of the devices as well as the purpose of each pin.It .....