alleryWhat character cannot begin a Java identifier?
- Unicode letter
- Currency sign
- Numeric digit
- Underscore sign
Show answer and solution
Correct answer: C. Numeric digit
Java identifiers cannot begin with a numeric digit.
ICSE Class 10 Classes, Encapsulation and Scope — practice questions
Explore 144 free Classes, Encapsulation and Scope questions in ICSE Class 10 Computer Applications. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 144.
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 →Which character may be placed between digits of a numeric literal?Read the answer and worked solution →Which pair of symbols defines a code block and new scope in Java?Read the answer and worked solution →Which delimiter begins a single end-of-line comment in Java?Read the answer and worked solution →What marks the opening and closing of a traditional block comment?Read the answer and worked solution →What type of comment begins with /** and is read by Javadoc?Read the answer and worked solution →Which delimiter separates multiple variable names in one declaration?Read the answer and worked solution →Which operator is uniquely overloaded in Java for string concatenation?Read the answer and worked solution →What operator performs an unsigned right shift operation in Java?Read the answer and worked solution →Which operator can replace a simple if statement in Java?Read the answer and worked solution →Which primitive data type cannot be evaluated in a switch statement?Read the answer and worked solution →Which switch label runs when no case label matches the expression?Read the answer and worked solution →What happens when the break keyword is omitted from a switch case?Read the answer and worked solution →When is the condition tested during execution of a Java while loop?Read the answer and worked solution →How many times is the body of a do-while loop guaranteed to execute?Read the answer and worked solution →What type must the condition expression evaluate to in a Java loop?Read the answer and worked solution →Which structure does an unlabelled break statement exit immediately?Read the answer and worked solution →What action is triggered when a continue statement executes in a loop?Read the answer and worked solution →Which reserved word currently has no use or purpose in Java?Read the answer and worked solution →Which primitive data type in Java is treated as an unsigned type?Read the answer and worked solution →How many bits of memory does a char type occupy in Java?Read the answer and worked solution →What three core aspects define an object in software development?Read the answer and worked solution →What acts as a blueprint defining the structure and behavior of an object?Read the answer and worked solution →In class-based programming, what is an object considered to be?Read the answer and worked solution →Through which routine is an object created in class-based programming?Read the answer and worked solution →Which variable gives each created object its own independent version?Read the answer and worked solution →Which variable belongs to a class so all objects share a single copy?Read the answer and worked solution →
Worked practice questions
How does Java handle casing in identifier names?
- Case-sensitive
- Case-neutral
- Uppercase only
- Lowercase only
Show answer and solution
Correct answer: A. Case-sensitive
Identifier names in Java are strictly case-sensitive.
Which punctuation symbol is allowed in a Java identifier?
- Semicolon ;
- Period dot .
- Hyphen sign -
- Underscore _
Show answer and solution
Correct answer: D. Underscore _
Connecting punctuation like the underscore is permitted in Java identifiers.
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