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ICSE Class 10 Computer Applications — practice by topic

Browse 432 questions across 4 Computer Applications topics. Choose what you want to revise, then open a question to check its answer and worked solution.

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Computer Applications topics

Classes, Encapsulation and Scope (144)Arrays in Java (Single and Double Dimensional) (96)String Handling and Wrapper Classes (96)User-Defined Methods and Constructors (96)

Try a Computer Applications question

What character cannot begin a Java identifier?Read the answer and worked solution →How does Java handle casing in identifier names?Read the answer and worked solution →Which punctuation symbol is allowed in a Java identifier?Read the answer and worked solution →What is the default data type of an integer literal in Java?Read the answer and worked solution →

Worked practice questions

What character cannot begin a Java identifier?

  1. Unicode letter
  2. Currency sign
  3. Numeric digit
  4. Underscore sign
Show answer and solution

Correct answer: C. Numeric digit

Java identifiers cannot begin with a numeric digit.

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How does Java handle casing in identifier names?

  1. Case-sensitive
  2. Case-neutral
  3. Uppercase only
  4. Lowercase only
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Correct answer: A. Case-sensitive

Identifier names in Java are strictly case-sensitive.

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Which punctuation symbol is allowed in a Java identifier?

  1. Semicolon ;
  2. Period dot .
  3. Hyphen sign -
  4. Underscore _
Show answer and solution

Correct answer: D. Underscore _

Connecting punctuation like the underscore is permitted in Java identifiers.

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How to practise

  1. Choose a Computer Applications question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
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