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Learn Java Type Casting

Java Type Casting is the process of converting a value from one data type to another data type. Type casting is also known as type conversion or data type conversion. In Java, there are two types of type casting: implicit type casting (also known as widening conversion) and explicit type casting (also known as narrowing […]

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Learn Java Non-Primitive Data Type

In Java, non-primitive data types are also known as reference types or objects. These data types do not contain the actual data, but rather they refer to an instance of a class that contains the data. Here are some common non-primitive data types in Java: String: This data type is used to store a sequence […]

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Learn Java Characters

In Java, characters are represented using the char data type, which is a 16-bit unsigned integer that can represent all Unicode characters. Here are some examples of working with characters in Java: Declaring and initializing a character variable: char ch = ‘A’;   Printing the character to the console: System.out.println(ch);   Output: A   Converting […]

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Learn Java Boolean Data Types

Learn Java Boolean Data Types In Java, the Boolean data type is used to represent a variable that can hold either of two values: true or false. There are two types of Boolean data types in Java: Primitive Boolean: The primitive Boolean data type is a built-in data type in Java that can hold only […]

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Learn Java Numbers

Learn Java Numbers Java provides several data types to represent different kinds of numbers, including integers, floating-point numbers, and more. In this answer, I will provide an overview of the most common numeric data types in Java. Integers: Java provides four integer data types: byte, short, int, and long. All of these data types represent […]

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Learn Java Data Types

Learn Java Data Types In Java, data types are used to define the type of data that variables can hold. The data type of a variable specifies the size & the type of values that can be stored in that variable. There are 2 types of data types in Java Programming language: primitive data types […]

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Learn Java Identifiers

Learn Java Identifiers In Java, an identifier is a name given to a variable, class, method, or another program element. Java identifiers must follow some rules: An identifier must start with a letter (a to z or A to Z), a dollar sign ($), or an underscore (_). After the initial character, identifiers can contain […]

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Learn Declare Multiple Variables In Java

Learn How To Declare Multiple Variables If you want to declare more than one variable or multiple variables of the same type, you can use a comma-separated list: For example, instead of writing: int x = 41; int y = 71; int z = 71; System.out.println(x + y + z);     You can simply […]

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Learn Java Print Variables

Display Variables – Java Print Variables Use println( ) method is usually used to display whatever you can put inside. If you want to combine both text and a variable, use the + character, and text always comes in these ” “:   Code Example: public class first {     public static void main(String[] […]

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Learn Java Variables

Learn Java Variables Java Variables are containers that are used to store data values. In Java, there are various types of variables, as given below: String: It stores text, for example, “Hello”. String values are provided using double quotes. Int: It stores integers, all whole numbers, without decimals, such as 145 or -145. Float: It is used to […]