Graph Edge Draw Provide a dedicated JPanel to allow users to add, move, and delete edges from undirected graphs. The edges that were previously drawn should not disappear by themselves. Use JRadioButton and/or JComboBox in a separate JPanel to allow users to choose to add, move, or delete an edge. A popup menu should also be provided. The popup menu should be sensitive to its context, i.e., the GUI component on which it is triggered. Whenever necessary, the user should be prompted with instructions on how to continue or what is wrong.

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