Question

what are the variable initialized rule in Java
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Answer 1

In Java, every variable in a program must have a value before its value is used. Member variables (both static and instance) are initialized implicitly by default: Most primitives except boolean are default initialized to zero (e.g., the value for integer type is 0, 0.0f is for float type, and 0.0d is for double type)

Answer 2

In Java, every variable in a program must have a value before its value is used. Member variables (both static and instance) are initialized implicitly by default: Most primitives except boolean are default initialized to zero (e.g., the value for integer type is 0, 0.0f is for float type, and 0.0d is for double type)

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