Types and Values
There are two kinds of types in the Java programming language:
1)primitive types
2)reference types
There are two kinds of types in the Java programming language:
1)primitive types
2)reference types
- There are, correspondingly, two kinds of data values that can be stored in variables, passed as arguments, returned by methods,
- There is also a special null type, the type of the expression null, which has no name.
- Because the null type has no name, it is impossible to declare a variable of the null type or to cast to the null type.
- The null reference is the only possible value of an expression of null type.
- The null reference can always be cast to any reference type.
