In Java, an instance variable is a variable that belongs to an instance of a class, rather than to the class itself. An instance variable… [Read More]

Generics was introduced in 2004 in Java programming language. Before the introduction of generics, type safety was not available, which caused program to throw errors… [Read More]

List of keywords and their usages in Java Programming language. To learn more about a specific keyword, just click on the keyword and it will… [Read More]

The protected keyword is an access modifier in java. It is used for variables, methods and constructors. The fields marked with protected keyword are only… [Read More]

The private keyword is an access modifier in java. It can be used for variables, methods, constructors and inner classes. Note: The private is the… [Read More]

The new keyword is used to create an object of a class. It allocates a memory to the object during runtime. It invokes the specified… [Read More]

The long keyword is a primitive data type in Java. Similar to int data type, it is used to store whole numbers. The range of… [Read More]

The int keyword is a primitive data type in Java. An int data type can hold values ranging from -231(-2147483648) to 231-1 (2147483647). public class… [Read More]

The instanceof keyword is an operator in java. It checks if the given object is an instance of a specified class or interface. It returns… [Read More]

The float keyword is a data type in Java, which is used for floating point values. The range for float data type is 3.4e-038 to… [Read More]