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How Java handles arguments of a class type.

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public static void openFile(String fileName, PrintWriter stream) throws FileNotFoundException
{
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PrintWriter toFile = null;
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Java enum ö¾ÙÀàÐÍ

Java enum ö¾ÙÀàÐÍ
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public interface FTPOperate
{
public void execute(FTPBean entity);
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FTPProxy.java:
public interface FTPProxy
{
public void connection();
public abstract void upload();

public abstract void download();
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