A.Since the method foo（） does not catch the exception generated by the method baz（）， it must      declare the RuntimeException in its throws clause.
B.A try block cannot be followed by both a catch and a finally block.
C.An empty catch block is not allowed.
D.A catch block cannot follow a finally block.
E.A finally block must always follow one or more catch blocks.

A.For non-negative values of the left operand， the >> and >>> operators will have the same effect.
B.The result of （-1 >> 1） is 0.
C.The result of （-1 >>> 1） is -1.
D.The value returned by >>> will never be negative as long as the value of the right operand is equal     to or greater than 1.
E.When using the >> operator， the leftmost bit of the bit representation of the resulting value will    always be the same bit value as the leftmost bit of the bit representation of the left operand.