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Questions and Answers
What is the purpose of using the if-else statement in decision making?
What is the purpose of using the if-else statement in decision making?
- To execute a specific block of statements if the test expression is false (correct)
- To execute a specific block of statements if the test expression is true
- To execute multiple block of statements simultaneously
- To skip a block of statements based on a condition
In the given code snippet, what will be the output when the user enters the numbers 12 and 10?
In the given code snippet, what will be the output when the user enters the numbers 12 and 10?
- a is greater (correct)
- Both a is greater and b is greater will be printed
- No output will be generated
- b is greater
Which statement type allows for nested conditions in decision making?
Which statement type allows for nested conditions in decision making?
- if-else statement
- Nested if-else statement (correct)
- if-else ladder statement
- if statement
What happens if a test expression in an if-else statement evaluates to true?
What happens if a test expression in an if-else statement evaluates to true?
What is the purpose of an if-else ladder statement?
What is the purpose of an if-else ladder statement?
How does a nested if-else statement differ from a regular if-else statement?
How does a nested if-else statement differ from a regular if-else statement?
What will be the output when the value of var1 is 21 and the value of var2 is 12 in the given code?
What will be the output when the value of var1 is 21 and the value of var2 is 12 in the given code?
In the switch statement example provided, what grade will be printed if a user enters marks as 74?
In the switch statement example provided, what grade will be printed if a user enters marks as 74?
For a person aged 22, what will be the output of the ternary operator in the given ternary operator code snippet?
For a person aged 22, what will be the output of the ternary operator in the given ternary operator code snippet?
When using the goto statement in C, in what situations would you typically use a label?
When using the goto statement in C, in what situations would you typically use a label?
What will be the output of the table printing code if the user enters the number 5?
What will be the output of the table printing code if the user enters the number 5?
In C programming, what happens if there are no 'break' statements in a switch case block?
In C programming, what happens if there are no 'break' statements in a switch case block?
Which operator cannot be replaced by a ternary operator in C programming?
Which operator cannot be replaced by a ternary operator in C programming?
'Labels' used with 'goto' statements in C programming have a specific naming requirement. What is it?
'Labels' used with 'goto' statements in C programming have a specific naming requirement. What is it?
'Goto' statements in C programming can be used for which of the following purposes?
'Goto' statements in C programming can be used for which of the following purposes?
'Ternary' operators in C are best suited for which type of operations?
'Ternary' operators in C are best suited for which type of operations?
Study Notes
Decision Making using If
- If statement is a two-way decision statement used in conjunction with an expression.
- Syntax:
if (test expression) { statement block; } statement-x; - If the test expression is true, the statement block after if is executed, otherwise it is not executed.
If-Else Statement
- Used when there is another set of statements to be executed if the condition is false.
- Syntax:
if (test expression) { statement block1; } else { statement block2; } statement-x;
Nested If-Else Statement
- Used when more than one if-else statement is needed.
- Syntax:
if (test cond1) { if (test expression2) { statement block1; } else { statement block2; } } else { statement block2; } statement-x;
Switch Case Statement
- Used when there are more than one valid choices to choose from.
- Syntax:
switch(expression) { case value-1: block-1; break; case value-2: block-2; break; ... default: default block; break; } statement-x;
Ternary Operator
- Syntax:
Test condition ? expression1 : expression2; - If the test condition is true, expression1 is executed, otherwise expression2 is executed.
- Takes 3 operands: condition, expression1, and expression2.
GoTo Statement
- Used to escape from multiple nested loops or to go to an error handling exit at the end of a function.
- A label is required when using a goto statement.
- Labels have their own namespace and can't clash with variable or function names.
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Description
This quiz covers the basics of decision making in programming using if statements. Learn how to execute specific statements based on conditions and loop through statements until certain conditions are met. Explore the syntax and usage of if statements in programming.
