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CS 1102-01 Programming 1 - AY2026-T2

CS 1102-01 Programming 1 - AY2026-T2

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What is the purpose of the collect() method in the Stream API?

To perform a reduction operation on the elements of a stream

To convert the elements of a stream into a collection or a single value

To transform the elements of a stream using a mapping function

To filter the elements of a stream based on a given predicate

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Which interface in the Collection Hierarchy allows traversal through a collection of elements?

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How can you create a tool tip in Java Swing?

By calling the setToolTipText() method on the component and passing the tool tip text.

By creating an instance of the ToolTip class and setting its text property.

By using the ToolTipManager class to manage tool tips for the component.

By calling the addToolTip() method on the component and passing a ToolTip object.

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Which layout manager in Java Swing allows components to be arranged in a stack-like manner?

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What is the purpose of a JavaFX scene graph?

It represents the hierarchical structure of all the visual elements in a JavaFX application.

It defines the structure and layout of a user interface.

It handles all the user events and actions in a JavaFX application.

It manages the rendering and animation of visual elements in a JavaFX application.

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What is the output of the following code

snippet?

ArrayList<Integer> numbers = new

ArrayList<>();

numbers.add(1);

numbers.add(2);

numbers.set(1, 3);

System.out.println(numbers.get(1));

3

Error

1

2

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What is the main difference between method overloading and method overriding in Java?

Method overloading allows for multiple methods with the same name but different parameters, while method overriding involves redefining a method in a subclass with the same name and parameters as in the superclass.

Method overloading allows for different return types, while method overriding does not.

Method overloading is only applicable to interfaces, while method overriding is applicable to classes.

Method overloading is used for private methods, while method overriding is used for public methods.

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Which of the following statements about method overloading in Java is true?

Overloaded methods can have different access modifiers.

Overloaded methods cannot have parameters.

Overloaded methods must have a different name and return type.

Overloaded methods must have the same name and return type.

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What is the purpose of an abstract class in object-oriented programming?

To define a class that can only be instantiated once

To define a class that contains only abstract methods

To define a class that cannot be inherited by other classes

To define a class that cannot be instantiated but can be inherited by subclasses

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Which of the following is an example of composition in object-oriented programming?

A class inheriting from another class

An object containing other objects as its attributes

A class sharing attributes and methods with another class

A method calling another method within the same class

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