Which of the following statements is false?
a. because a wildcard is a type-parameter name, you can use it as a type name throughout a method's body.
b. a wildcard-type argument is denoted by ? ,
c. which represents an "unknown type." if a wildcard is specified without an upper bound, then only the methods of type object can be invoked on values of the wildcard type.
d. wildcard type arguments enable you to specify method parameters, return values, variables, and so on, that act as supertypes of parameterized types.

The instruction ishl (shift left integer) exists in jvm but not in ijvm. it uses the top two values on the stack, replacing the two with a single value, the result. the sec- ond-from-top word of the stack is the operand to be shifted. its content is shifted left by a value between 0 and 31, inclusive, depending on the value of the 5 least signifi- cant bits of the top word on the stack (the other 27 bits of the top word are ignored). zeros are shifted in from the right for as many bits as the shift count. the opcode for ishl is 120 (0x78).a. what is the arithmetic operation equivalent to shifting left with a count of 2? b. extend the microcode to include this instruction as a part of ijv.

Jason works as an accountant in a department store. he needs to keep a daily record of all the invoices issued by the store. which file naming convention would him the most? a)give the file a unique name b)name the file in yymmdd format c)use descriptive name while naming the files d)use capital letters while naming the file

How is the brightness of oled of the diaplay is controled