GUI and Web Frameworks

DESK.cpl is the Control Panel file that opens Display Properties in Windows. The .cpl extension indicates Control Panel applets. DISPLAY.cpl, DISP.cpl, and DISPROP.cpl are not valid Windows CPL files - the correct name is DESK.cpl (short for Desktop properties). You can run it by entering 'desk.cpl' in the Run dialog or Command Prompt.

The Activate event is the only PeopleCode event specifically associated with a Page object in PeopleSoft. Other events like PreBuild and PostBuild are associated with Components, not Pages. The Activate event fires when a page becomes active in the component.

The ItemSelected PeopleCode event is specifically designed to execute when a user selects an item from a pop-up menu. This event is unique to pop-up menu items and is not associated with standard pages or other components.

The PreBuild and PostBuild PeopleCode events are commonly used to control page visibility within a component. PreBuild can hide pages before they're displayed, and PostBuild can modify visibility after initial building. This allows dynamic page showing/hiding based on conditions.

To increase white space between widgets in Android layouts, you would use margins (android:layout_margin or similar), not padding. Padding adds space inside a widget's boundaries, while margins add space outside. None of the listed options (padding, layout_gravity, layout_weight) are the correct property for adding space between widgets. Option A (padding) adds internal space. Option B (layout_gravity) controls positioning within the parent. Option C (layout_weight) controls how remaining space is distributed among widgets.

ScrollView is a container layout that provides scrolling functionality for its child content, allowing users to view content that exceeds the visible screen area. Option B (ListView) is a specialized view for displaying scrollable lists of data, but it's not the general-purpose container the question asks about. Option C is incorrect because while ListView does scroll, ScrollView is the fundamental container class specifically designed to add scrolling to any content.

EditText extends TextView, which is the base class for displaying text in Android. TextView is used for labels and non-editable text display, while EditText adds editing capabilities. View is the parent of TextView (too generic), and ViewField is not a valid Android class.

FrameLayout is designed to block out an area on the screen to display a single item, acting as a placeholder that can be filled dynamically. The distractors describe RelativeLayout (relative positioning), AbsoluteLayout (x/y coordinates), and LinearLayout (linear alignment of children), which are distinct layouts.

In Android, the hierarchy for RadioButton is View -> TextView -> Button -> CompoundButton -> RadioButton. Among the options, TextView is the ancestor/root widget class from which RadioButton inherits its text-rendering capabilities. Button is a direct parent, and CompoundView does not exist in the standard Android widget library.

TableLayout arranges views in rows and columns, providing a grid-like structure. LinearLayout arranges in one direction (row or column), RelativeLayout uses positional relationships, and FrameLayout stacks views. The claimed answer A is correct.

The explanation is REVERSED in the statement. android:gravity controls content positioning WITHIN a View (used by the View), while android:layout_gravity controls the View's position WITHIN its container (used by the container/Layout). The statement incorrectly swaps their usage. The claimed answer B (False) is correct.

By default, Android's LinearLayout is horizontally oriented and aligns its children starting from the top-left corner (Gravity.TOP | Gravity.START or left-aligned in standard LTR layouts). Distractors incorrectly claim it is only left-aligned or only top-aligned, whereas both horizontal and vertical alignment rules apply.

layout_weight allocates REMAINING (free) space proportionally. If widget A has weight 1 and widget B has weight 2, the total weight is 3. Widget A gets 1/3 of free space, widget B gets 2/3 - so B gets twice what A gets. The claimed answer B is correct.

Object diagrams provide a visual representation of object instances and their relationships at a specific point in time. Object Explorer allows navigation and modification of objects within a modeling environment. Together, these tools enable comprehensive modification of both objects and their relationships.