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data types

In java every variable has a type, every expression has a type and all types are strictly the assignments should be checked by the compiler for the type compatibility. Hence…
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reserved words

Some identifiers are reserved words in java to represent literal and to define some functionality ,such type of reserved identifiers are called "reserved words" Keywords for primitive data types byte,short,int,long…
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A name in the program is an identifier it may be class name or method name,variable name or label name. public class IdentifierDemo{ public static void main(String args){ int age;…
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