#11 Nested Loops in java || Java Full course

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Simply set aside memory spaces for storing values in variables. This implies that memory space is reserved when a variable is created. Based on the data type of a variable, the operating system allocates memory and determines what can be put there. All constants and variables defined for a specific program must be represented with one of the data types because each type of data (such as integer, character, hexadecimal, packed decimal, and so on) is predefined as a part of the Java programming language. The relegated memory As a result, you may store integers, texts, and numbers by giving different data types to variables. You may enter decimals or characters in these variables.