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CS 1102-01 Programming 1 - AY2025-T3

CS 1102-01 Programming 1 - AY2025-T3

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Which of the following statements is true regarding the use of "this" keyword in Java?

It is used to access static members of a class.

It is used to refer to the current object.

It is used to create an instance of a class.

It is used to call the constructor of the superclass.

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Which of the following is NOT a valid way to declare and initialize a string variable in Java?

char[ ] charArray = {'H', 'e', 'l', 'l', 'o'};

String str = new String(charArray);

String str = "Hello";

String str = new String("Hello");

String str = 'Hello';

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How does the Stream API's anyMatch() method behave when encountering a matching element in the stream?

It terminates the stream and returns false.

It continues processing the remaining elements and returns false.

It terminates the stream and returns true.

It continues processing the remaining elements and returns true.

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Which block is used to specify the code that should always execute, regardless of whether an exception occurs or not?

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In Java, can an interface have instance methods?

It depends on the access modifiers of the methods.

Yes, an interface can have instance methods.

No, an interface can only have static methods.

It depends on the version of Java being used.

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What is the purpose of the try block in exception handling?

To handle exceptions that occur in the catch block

To catch exceptions

To define a block of code that may throw an exception

To terminate the program

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How can you create a scroll pane in Java Swing?

By calling the setScrollable() method on the component and passing true.

By creating an instance of the JScrollBar class and adding it to a component.

By using the ScrollPane class to create a scroll pane.

By creating an instance of the JScrollPane class and adding a component to it.

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What is the purpose of the Java AWT package in GUI development?

It provides the underlying foundation for Swing and JavaFX.

It enables developers to create web-based user interfaces.

It provides a lightweight alternative to Swing for GUI development.

It offers advanced graphics and animation capabilities.

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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.add(3);

System.out.println(numbers.get(2));

3

1

Error

2

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What is the purpose of the "static" keyword in method parameters in Java?

It indicates that the method parameter is optional.

There is no purpose of using the "static" keyword in method parameters.

It indicates that the method parameter cannot be modified.

It indicates that the method parameter is shared among all instances of the class.

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