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MCQOPTIONS
This section includes 301 Mcqs, each offering curated multiple-choice questions to sharpen your Matlab knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Window class, onSetCursor/3, defines |
| A. | the window wants to know what cursor it must display for the mouse pointer |
| B. | the mouse is moved over a window |
| C. | when a mouse button is pressed this event is executed |
| D. | a mouse button is released |
| Answer» B. the mouse is moved over a window | |
| 2. |
SizerClient in window programming ? |
| A. | this type of sizer ensures that a panel window fills the complete client rect- angle of a frame window |
| B. | this sizer class makes a panel ‘stick’ to one side of a frame window and the size of the panel window is a fixed num- ber of pixels. |
| C. | this sizer ensures that a panel window is percentage of the size of a frame win- dow. |
| D. | None of these |
| Answer» B. this sizer class makes a panel ‘stick’ to one side of a frame window and the size of the panel window is a fixed num- ber of pixels. | |
| 3. |
Window class, onHScroll/3, defines |
| A. | a window is moved to a new position |
| B. | the user wants to view a floating popup menu for the window |
| C. | an event from the vertical scrollbar of the window |
| D. | an event from the horizontal scrollbar of the window |
| Answer» E. | |
| 4. |
Window class, onMove/2, defines |
| A. | a window is moved to a new position |
| B. | the user wants to view a floating popup menu for the window |
| C. | an event from the vertical scrollbar of the window |
| D. | an event from the horizontal scrollbar of the window |
| Answer» B. the user wants to view a floating popup menu for the window | |
| 5. |
Window class, onMouseDown/5, defines |
| A. | the window wants to know what cursor it must display for the mouse pointer |
| B. | the mouse is moved over a window |
| C. | when a mouse button is pressed this event is executed |
| D. | a mouse button is released |
| Answer» D. a mouse button is released | |
| 6. |
Controls are |
| A. | the exterior of a window. |
| B. | the interior of a frame window. |
| C. | windows used for input/output that are placed on a panel window |
| D. | None of these |
| Answer» D. None of these | |
| 7. |
Window class, onKeyUp/3, defines |
| A. | a key on the keyboard is pressed |
| B. | a key on the keyboard is released |
| C. | a mouse button was double clicked |
| D. | the user clicks on a window |
| Answer» C. a mouse button was double clicked | |
| 8. |
Window class, onSize/2, defines |
| A. | during the processing of a key this event is executed with the ASCII value of the key pressed |
| B. | a menu command was selected |
| C. | a menu item is selected |
| D. | a window was resized |
| Answer» E. | |
| 9. |
These exist ——— panel windows inside the same frame window. |
| A. | Several |
| B. | Only one |
| C. | None |
| D. | None of these |
| Answer» B. Only one | |
| 10. |
SizerFixed in window programming |
| A. | this type of sizer ensures that a panel window fills the complete client rect- angle of a frame window |
| B. | this sizer class makes a panel ‘stick’ to one side of a frame window and the size of the panel window is a fixed num- ber of pixels |
| C. | this sizer ensures that a panel window is percentage of the size of a frame win- dow. |
| D. | None of these |
| Answer» C. this sizer ensures that a panel window is percentage of the size of a frame win- dow. | |
| 11. |
Window class, onMouseUp/5 , defines |
| A. | the window wants to know what cursor it must display for the mouse pointer |
| B. | the mouse is moved over a window |
| C. | when a mouse button is pressed this event is executed |
| D. | a mouse button is released |
| Answer» E. | |
| 12. |
Groupbox in window programming |
| A. | does nothing except draw a rectangle, it is used to visually group controls to- gether |
| B. | displays text |
| C. | for input of multiple lines of text |
| D. | none of these |
| Answer» B. displays text | |
| 13. |
Window class, onActivate/2, defines |
| A. | is executed when a window is becom- ing visible or is being hidden |
| B. | when a window is being disabled or en- abled this event is executed |
| C. | this event is executed when the user switches to another window of the same application |
| D. | when a window receives the keyboard focus this event is executed |
| Answer» D. when a window receives the keyboard focus this event is executed | |
| 14. |
Window class, onKBFocus/3, defines |
| A. | is executed when a window is becom- ing visible or is being hidden |
| B. | when a window is being disabled or en- abled this event is executed |
| C. | this event is executed when the user switches to another window of the same application |
| D. | when a window receives the keyboard focus this event is executed |
| Answer» E. | |
| 15. |
Window class, onEnable/1, defines |
| A. | is executed when a window is becom- ing visible or is being hidden |
| B. | when a window is being disabled or en- abled this event is executed |
| C. | this event is executed when the user switches to another window of the same application |
| D. | when a window receives the keyboard focus this event is executed |
| Answer» C. this event is executed when the user switches to another window of the same application | |
| 16. |
Window class, onMouseDoubleClick/5, de- fines |
| A. | a mouse button was double clicked |
| B. | the user clicks on a window |
| C. | a key on the keyboard is pressed |
| D. | a key on the keyboard is released |
| Answer» B. the user clicks on a window | |
| 17. |
All the classes necessary for Windows pro-gramming are in the module |
| A. | win.txt |
| B. | win.std |
| C. | win.main |
| D. | none of these |
| Answer» B. win.std | |
| 18. |
Button in window programming |
| A. | displays text and can be clicked with the mouse or spacebar |
| B. | a checkmark which the user can select |
| C. | a list from which one item can be se- lect |
| Answer» B. a checkmark which the user can select | |
| 19. |
Window class, onVScroll/3, defines |
| A. | a window is moved to a new position |
| B. | the user wants to view a floating popup menu for the window |
| C. | an event from the vertical scrollbar of the window |
| D. | an event from the horizontal scrollbar of the window |
| Answer» D. an event from the horizontal scrollbar of the window | |
| 20. |
Memo in window programming |
| A. | does nothing except draw a rectangle, it is used to visually group controls to- gether |
| B. | displays text |
| C. | for input of multiple lines of text |
| D. | none of these |
| Answer» D. none of these | |
| 21. |
Edit in window programming |
| A. | displays text and can be clicked with the mouse or spacebar |
| Answer» E. | |
| 22. |
Combobox in window programming |
| A. | displays text and can be clicked with the mouse or spacebar |
| B. | a checkmark which the user can select |
| C. | a list from which one item can be se- lect |
| Answer» D. | |
| 23. |
Window class, onClick/1, defines |
| A. | a mouse button was double clicked |
| B. | the user clicks on a window |
| C. | a key on the keyboard is pressed |
| D. | a key on the keyboard is released |
| Answer» C. a key on the keyboard is pressed | |
| 24. |
Checkbox in window programming |
| A. | displays text and can be clicked with the mouse or spacebar |
| B. | a checkmark which the user can select |
| C. | a list from which one item can be se- lect |
| Answer» C. a list from which one item can be se- lect | |
| 25. |
Window class, onMouseMove/5 , defines |
| A. | the window wants to know what cursor it must display for the mouse pointer |
| B. | the mouse is moved over a window |
| C. | when a mouse button is pressed this event is executed |
| D. | a mouse button is released |
| Answer» C. when a mouse button is pressed this event is executed | |
| 26. |
Window class, onCreate/1 ,defines |
| A. | is executed when a visible window is being created |
| B. | is executed when a window is being closed, it is possible to prevent the win- dow from closing |
| C. | when the background of a window must be erased this event is executed |
| D. | when a window must be re-painted this event is executed |
| Answer» B. is executed when a window is being closed, it is possible to prevent the win- dow from closing | |
| 27. |
Window class, onChar/3, defines |
| A. | during the processing of a key this event is executed with the ASCII value of the key pressed |
| B. | a menu command was selected |
| C. | a menu item is selected |
| D. | a window was resized |
| Answer» B. a menu command was selected | |
| 28. |
Panels is |
| A. | the exterior of a window. |
| B. | the interior of a frame window |
| C. | windows used for input/output that are placed on a panel window |
| D. | None of these |
| Answer» C. windows used for input/output that are placed on a panel window | |
| 29. |
A panel window is a window |
| A. | which can only exist inside a frame win- dow |
| B. | which can not exist inside a frame win- dow |
| C. | which can exist outside the frame win- dow |
| D. | none of these |
| Answer» B. which can not exist inside a frame win- dow | |
| 30. |
Window class, onEraseBackground/1, de- fines |
| A. | is executed when a visible window is being created |
| B. | is executed when a window is being closed, it is possible to prevent the win- dow from closing |
| C. | when the background of a window must be erased this event is executed |
| D. | when a window must be re-painted this event is executed |
| Answer» D. when a window must be re-painted this event is executed | |
| 31. |
Label in window programming |
| A. | does nothing except draw a rectangle, it is used to visually group controls to- gether |
| B. | displays text |
| C. | for input of multiple lines of text |
| D. | none of these |
| Answer» C. for input of multiple lines of text | |
| 32. |
SizerPercent in window programming |
| A. | this type of sizer ensures that a panel window fills the complete client rect- angle of a frame window |
| B. | this sizer class makes a panel ‘stick’ to one side of a frame window and the size of the panel window is a fixed num- ber of pixels. |
| C. | this sizer ensures that a panel window is percentage of the size of a frame win- dow. |
| D. | None of these |
| Answer» D. None of these | |
| 33. |
Window class, onPaint/2, defines |
| A. | is executed when a visible window is being created |
| B. | is executed when a window is being closed, it is possible to prevent the win- dow from closing |
| C. | when the background of a window must be erased this event is executed |
| D. | when a window must be re-painted this event is executed |
| Answer» E. | |
| 34. |
Window class, onInitPopupMenu/2, defines |
| A. | a window is moved to a new position |
| B. | the user wants to view a floating popup menu for the window |
| C. | an event from the vertical scrollbar of the window |
| D. | an event from the horizontal scrollbar of the window |
| Answer» C. an event from the vertical scrollbar of the window | |
| 35. |
Window class, on Close/2 |
| A. | is executed when a visible window is being created |
| B. | is executed when a window is being closed, it is possible to prevent the win- dow from closing |
| C. | when the background of a window must be erased this event is executed |
| D. | when a window must be re-painted this event is executed |
| Answer» C. when the background of a window must be erased this event is executed | |
| 36. |
Window class, onMenuSelect/2, defines |
| A. | during the processing of a key this event is executed with the ASCII value of the key pressed |
| B. | a menu command was selected |
| C. | a menu item is selected |
| D. | a window was resized |
| Answer» D. a window was resized | |
| 37. |
Window class, onShow/2, defines |
| A. | is executed when a window is becom- ing visible or is being hidden |
| B. | when a window is being disabled or en- abled this event is executed |
| C. | this event is executed when the user switches to another window of the same application |
| D. | when a window receives the keyboard focus this event is executed |
| Answer» B. when a window is being disabled or en- abled this event is executed | |
| 38. |
Window class, onCommand/2, defines |
| A. | during the processing of a key this event is executed with the ASCII value of the key pressed |
| B. | a menu command was selected |
| C. | a menu item is selected |
| D. | a window was resized |
| Answer» C. a menu item is selected | |
| 39. |
Window class, onKeyDown/3 , defines |
| A. | a mouse button was double clicked |
| B. | the user clicks on a window |
| C. | a key on the keyboard is pressed |
| D. | a key on the keyboard is released |
| Answer» D. a key on the keyboard is released | |
| 40. |
‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ relationship indicates that the change to an independent thing will affect thedependent thing. |
| A. | inheritance |
| B. | dependency |
| C. | association |
| D. | aggregation |
| Answer» C. association | |
| 41. |
‐‐‐‐‐‐‐ is the actual body of the function |
| A. | Library function |
| B. | Function call |
| C. | Function definition |
| D. | Function declaration |
| Answer» D. Function declaration | |
| 42. |
Array indexing always starts with the number |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | \0 |
| Answer» B. 1 | |
| 43. |
A private member function can be called by another function that is a member of a class iscalled |
| A. | Friend function |
| B. | Nesting of member function |
| C. | Inline function |
| D. | Static function |
| Answer» C. Inline function | |
| 44. |
To ensure that every object in the array receives a destructor call, always delete memoryallocated as an array with operator __________ . |
| A. | destructor |
| B. | New[] |
| C. | delete[] |
| D. | Free() |
| Answer» D. Free() | |
| 45. |
Tne multiple use of input and output operator is called ……………. |
| A. | polymorphism |
| B. | inheritance |
| C. | cascading |
| D. | none of these. |
| Answer» D. none of these. | |
| 46. |
The empty virtual function are called |
| A. | pure /donothing |
| B. | virtual table |
| C. | polymorphism |
| D. | virtual base class |
| Answer» B. virtual table | |
| 47. |
A static variable is initialized to ‐‐‐‐‐when the first object of its class is created. |
| A. | 1 |
| B. | Null |
| C. | None of these |
| Answer» D. | |
| 48. |
The indirect operator is |
| A. | & |
| B. | * |
| C. | :: |
| D. | :? |
| Answer» C. :: | |
| 49. |
Which feature in OOP allows reusing code? |
| A. | Polymorphism |
| B. | Inheritance |
| C. | Encapsulation |
| D. | Data hiding |
| Answer» C. Encapsulation | |
| 50. |
Which function is in the istream class |
| A. | get() |
| B. | put() |
| C. | write |
| D. | cout |
| Answer» B. put() | |