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A.double getSalesAmount（） { return 1230.45； }
B.public double getSalesAmount（） { return 1230.45； }
C.private double getSalesAmount（） { return 1230.45； }
D.protected double getSalesAmount（） { return 1230.45； }

A.int foo（） { /* more code here */ }
B.void foo（） { /* more code here */ }
C.public void foo（） { /* more code here */ }
D.private void foo（） { /* more code here */ }
E.protected void foo（） { /* more code here */ }