Java Switch Statement The Java switch statement executes one statement from multiple conditions. It is like if-else-if ladder statement. The switch statement works with byte, short, int, long, enum types, String and some wrapper types like Byte, Short, Int, and Long. Since Java 7, you can use strings in the switch statement. In other words, the switch statement tests the equality of a variable against multiple values. Points to Remember There can be one or N number of case values for a switch expression. The case value must be of switch expression type only. The case value must be literal or constant . It doesn't allow variables . The case values must be unique . In case of duplicate value, it renders compile-time error. The Java switch expression must be of byte, short, int, long (with its Wrapper type), enums and string . Each case statement can have a break statement which is...
We are going to make a plan which we will follow to continue our course. Here are some points we are going to cover up throughout the course: Introduction Setup First Steps Variables Data Types Operators Expressions Statements Methods Control Flow Statements Introduction to Object Oriented Programming (OOP) Classes, Constructors and Inheritance Composition, Encapsulation, and Polymorphism Arrays, Java inbuilt Lists, Autoboxing and Unboxing Inner and Abstract Classes & Interfaces And so on....
Data types in JAVA Data types specify the different sizes and values that can be stored in the variable. There are two types of data types in Java: Primitive data types: The primitive data types include boolean, char, byte, short, int, long, float and double. Non-primitive data types: The non-primitive data types include Classes, Interfaces, and Arrays. Java Primitive Data Types: In Java language, primitive data types are the building blocks of data manipulation. These are the most basic data types available in Java language. Java is a statically-typed programming language. It means, all variables must be declared before its use. That is why we need to declare variable's type and name. There are 8 types of primitive data types: boolean data type byte data type char data type short data type int data type long data type float data type double data type Boolean Data Type The Boolean data type is used to store only ...
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