Q1
What do arithmetic operators do?
APerform mathematical operations
BCompare values only
CCombine booleans only
DNothing useful
ICSEClass 9 (ICSE)Computer ApplicationsCh 2 · Topic 2
Practice and Revision - Operators and Expressions
Let us practise and revise what we learned about operators and expressions. Operators perform actions on values (operands), and expressions
Core concept
Arithmetic operators, like +, -, *, /, and %, perform mathematical operations on numbers.
How it works
Relational operators, like ==, !=, <, >, compare values and return a boolean result (true or false).
Why it matters
Logical operators, like && (AND), || (OR), and ! (NOT), combine boolean expressions for more complex conditions.
Key detail
Understanding operators and expressions is essential for performing calculations and making decisions in Java programs.
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• Arithmetic operators: +, -, *, /, %.
• They perform mathematical operations.
• Relational operators: ==, !=, <, >.
• They compare values, returning true/false.
• Logical operators: && (AND), || (OR), ! (NOT).
• They combine boolean expressions.
• Operators and expressions compute results.
• This is essential for calculations and decisions.