Computer Applications
If a = 5, b = 9, calculate the value of a in the following expression:
a += a++ - ++b + a
Java
Java Operators
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Answer
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Working
a += a++ - ++b + a
⇒ a = a + (a++ - ++b + a)
⇒ a = 5 + (5 - 10 + 6) [∵ a++ will first use current value of a then increment it to 6. ++b will increment b to 10 and use the incremented value. As a++ incremented a to 6 so the value of last a in the expression is 6]
⇒ a = 5 + 1
⇒ a = 6
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