试题详情
- 单项选择题 public class Test { public static void add3 (Integer i) { int val = i.intValue(); val += 3; i = new Integer(val); } public static void main(String args[]) { Integer i = new Integer(0); add3(i); System.out.println(i.intValue()); } } What is the result? ()
A、 0
B、 3
C、 Compilation fails.
D、 An exception is thrown at runtime.
- A
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