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单选题
1. public class returnIt ( 2. returnType methodA(byte x, double y) ( 3. return (short) x/y * 2; 4. ) 5. ) What is the valid returnType for methodA in line 2?()
A
Int
B
Byte
C
Long
D
Short
E
Float
F
Double
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单选题public class returnIt ( returnType methodA(byte x, double y) ( return (short) x/y * 2; ) ) What is the valid returnType for methodA in line 2?()A
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app.BitUtils.process(bytes);D
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正常B
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运行错误D
以上都不对
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单选题Which will declare a method that is available to all members of the same package and be referenced without an instance of the class?()A
abstract public void methoda ();B
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Compilation succeeds and d takes the value 253.B
Line 5 contains an error that prevents compilation.C
Line 5 throws an exception indicating “Out of range”D
Line 3 and 4 contain error that prevent compilation.E
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单选题1. public class ReturnIt { 2. return Type methodA(byte x, double y) { 3. return (long)x / y * 2; 4. } 5. } What is the narrowest valid returnType for methodA in line2?()A
intB
byteC
longD
shortE
floatF
double
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