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"unary + has no effect on the value of its operand,byt the expression is promoted to at least int."-----from Complete Java2 Certification
Study Guide.That means -1 will be promoted at least int type.so "byte i=-1;"will results in compile error.But when I comile it,it runs well.Why?
 
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because -1 is a literal,
not a var

if RHS is a compile-time constant, and in the range of the LHS, the assignment is accepted by jvm
 
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