package import problem in mathematica

Programmer Question

In mathematica (I am using mma 5.0 ( guess pretty old)), if I type the following as one line:

Needs["Graphics`Master`"]; Animate[Plot[Sin[n x], {x, 0, 2 Pi}, Axes -> False], {n, 1, 6, 1}]

I then got a lot of errors/warnings. But if I type them in separately, it is working fine. How to make it work in one code block?

Thanks!

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