单项选择题
Given: Which command-line invocations will compile?()
A.javac Mule.java B.javac -source 1.3 Mule.java C.javac -source 1.4 Mule.java D.javac -source 1.5 Mule.java
单项选择题 Given a method that must ensure that its parameter is not null: What, inserted at line 12, is the appropriate way to handle a null value?()
单项选择题 Given: What is the result?()