单项选择题
What is the Result？（）
A. baz has the value of “”. B. baz has the value of null. C. baz has the value of “red” D. baz has the value of “blue” E. baz has the value of “green” F. The code does not compile. G. the program throws an exception.
单项选择题 What is the value of b bat line 5（）？
单项选择题 What is the result？（）
单项选择题 Which statement is true（）？
