How can we call one java class in another java class?

Hi all,
My problem is ,
one java code creates a file i have to send that file through email as an attachment here i wrote a java code to send a mail with attachment
can any one help me how i can implement this. my idea is to write a send mail function in 1st java code which creates the file
Is this a better idea ???plz suggest me.

Hi all,
My problem is ,
one java code creates a file i have to send that file
through email as an attachment here i wrote a java
code to send a mail with attachment
can any one help me how i can implement this. my idea
is to write a send mail function in 1st java code
which creates the file
Is this a better idea ???plz suggest me.may samaaj nahi atay

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/** = d, as a String, using exactly 5 characters.
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How can we call one java class in another java class?

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