Variables in Java

It is a data name used for storing a data value. Its value may be changed during the program execution. The value of variables keeps on changing during the execution of a program.

Declaration of Variable:
<data type> <variable name>
int num;
Initialization on variable:
<data type> <variable name>= <value>;
int num=34;
char gen=‘m’;
float amt=444.5f;
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