Practice Block Scope (8.4) - Statements and Scope - ICSE 11 Computer Applications

Practice: Block Scope

Lesson 8.4Statements and Scope

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9 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is block scope in Java?
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Think about where the variable is defined.
Question 2.
If a variable is declared in a loop, can it be accessed outside the loop?
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Consider the definition of block scope.
3Question 3.
What does block scope refer to?
- A. Accessibility of variables in a method
- B. Accessibility of variables defined within curly braces
- C. Accessibility of class variables
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Think about where variables can be accessed.
4Question 4.
True or False: Variables defined inside a loop can be accessed outside that loop.
- True
- False
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Recall the definition of block scope.
Question 5.
Write a Java block of code that uses nested blocks and demonstrates the concept of block scope correctly.
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Make sure to include where each variable is declared to show its scope.
6Question 6.
Analyze the following code and determine any block scope violations:
Java
for(int i = 0; i < 5; i++) { int number = i; } System.out.println(number); // Problem here
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Look closely at where the variables are being used in relation to where they were declared.

5 more questions in this section. Enroll free to practise them all.