How to get values and keys from HashMap?

Question

When the user opens it, a file will be opened in JTabbedPane. I did the following to save the files opened:

HashMap<String, Tab> hash = new HashMap<String, Tab>();

Where Tab will receive the values, such as: File file, JTextArea container, JTabbedPane tab.

I have a class called Tab:

public Tab(File file, JTextArea container, JTabbedPane tab)
{
    this.file = file;
    this.container = container;
    this.tab = tab;
    tab.add(file.getName(), container);
    readFile();
}

Now, in this SaveFile class, I need to get the Tab values stored in the HashMap, Can somebody tell me the syntax to do this?

Answer 1

To process all values:

hash.values().forEach(tab -> /*something to do with the tab */);

To process all entries:

hash.forEach((key, tab) -> /* something to do with the keys and tab*/);

This works with Java8.

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