Each of the following GUI programs uses a different approach for the layout of t

Question

Each of the following GUI programs uses a different approach for the layout of the widgets.

Determine which layout manager was used in each case.

                           [ Select ]                       ["Place Layout Manager", "Grid Layout Manager", "Pack Layout Manager"]      

                           [ Select ]                       ["Grid Layout Manager", "Place Layout Manager", "Pack Layout Manager"]      

                           [ Select ]                       ["Pack Layout Manager", "Grid Layout Manager", "Place Layout Manager"]      

Pack Layout Manager

Grid Layout Manager

Place Layout Manager

Explanation / Answer

Answer:

Case 1: "Place Layout Manager"

It uses absolute positioning, i.e we need to specify the widgets positioning using x and y coordinates, when using this layout manager the size and position of the widgets do not change while resizing the window. We can Observe that the 'Submit Button' is placed adjacent to the 'Enter Password:' text box.

Case 2-"Grid Layout Manager"

Grid allows us to position the elements in rows and columns which gives more flexibility our widgets. It simply makes a bunch of components equal in size and displays them in the requested number of rows and columns. We can observe the placement and size of Summit Button below the text bar.

Case 3- "Pack Layout Manager"

When we use Pack Layout we don’t need to explicitly specify the position of that on widget, it automatically places the widget in window based upon the space available in the window. In case 3 we can see the random position of the text and Submit Key.

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