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Questions and Answers
What will be the output if the average grade calculated is 97?
What will be the output if the average grade calculated is 97?
What does the equals function do when comparing strings?
What does the equals function do when comparing strings?
Which logical operator is used to check if both conditions are true?
Which logical operator is used to check if both conditions are true?
In a nested conditional statement, what is the condition for printing 'Qualified'?
In a nested conditional statement, what is the condition for printing 'Qualified'?
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What is the primary purpose of conditional statements in programming?
What is the primary purpose of conditional statements in programming?
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If a user inputs grades of 85, 90, 88, and 76, what will the program display based on the average?
If a user inputs grades of 85, 90, 88, and 76, what will the program display based on the average?
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In which scenario would an IF statement alone be adequate?
In which scenario would an IF statement alone be adequate?
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Which symbol represents 'not equals' in relational operators?
Which symbol represents 'not equals' in relational operators?
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What is a key feature of the IF – ELSE IF - ELSE statement?
What is a key feature of the IF – ELSE IF - ELSE statement?
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Which statement best defines nested conditional statements?
Which statement best defines nested conditional statements?
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How would an IF – ELSE statement typically respond to a false condition?
How would an IF – ELSE statement typically respond to a false condition?
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What distinguishes an IF statement from an IF – ELSE statement?
What distinguishes an IF statement from an IF – ELSE statement?
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What does the relational operator '<' signify?
What does the relational operator '<' signify?
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Study Notes
Conditional Statements
- Conditional statements allow programs to take actions based on given conditions, making them "smarter"
- They typically compare two values to decide which action to take
Relational Operators
- Relational operators compare values in conditional statements using symbols like
==(equals),!=(not equals),<(less than),>(greater than),<=(less than or equal to), and>=(greater than or equal to)
IF Statements
- Handle one conditional expression
- They execute a code block if the condition is true, otherwise, no action is taken
- Example:
if (age >= 18) {
System.out.println("You Have Access!");
}
IF-ELSE Statements
- Handle two conditional expressions
- Execute the first code block if the condition is true, else execute the second code block
- Example:
if (age >= 18) {
System.out.println("You have Access!");
} else {
System.out.println("Access Denied!") ;
}
IF-ELSE IF-ELSE Statements
- Handle three or more conditional expressions
- The program runs one specific code block depending on the condition that evaluates to true
- Example:
if (age >= 18) {
System.out.println("You Have Access!");
} else if (age >= 13) {
System.out.println("You Need Parent Consent!");
} else {
System.out.println("Access Denied!");
}
NESTED Conditional Statement
- A conditional statement within another conditional statement
- The nested statement can be any type of conditional statement
- Example:
if (age >= 18) {
if (isVerified) {
System.out.println("Qualified");
}
}
Equals Function
- Used to compare strings more effectively
- Compares the content of strings, not their memory address
- Example:
String x = "Hello";
if (x.equals("Hello")) {
System.out.println("Hi");
}
Logical Operators
- Combine multiple conditional expressions
-
&&(AND): Both conditions must be true -
||(OR): At least one condition must be true -
!(NOT): Inverts the given condition
Grade Average Program
- Takes four user input grades for different subjects
- Calculates the average of the grades
- Prints a message based on the average grade:
- Above 100 – Invalid Grade
- 98 to 100 – With Highest Honors
- 95 to 97.99 – With High Honors
- 90 to 94.99 – With Honors
- 75 to 89.99 – Passed
- Below 75 - Failed
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Description
Test your understanding of Java conditional statements, including IF, IF-ELSE, and IF-ELSE IF-ELSE structures. This quiz will assess your knowledge of how conditional expressions and relational operators function in Java programming.
