[Solved] You want to check if two variables a and b in Kotlin either have the same content or are the... Which code snippet correctly prints "Equal" if either condition is true, and "Not Equal" otherwise? | Kotlin

Kotlin - Operators and Expressions

You want to check if two variables a and b in Kotlin either have the same content or are the exact same object. Which code snippet correctly prints "Equal" if either condition is true, and "Not Equal" otherwise?

A

<pre>if (a === b) {
    println("Equal")
} else if (a == b) {
    println("Not Equal")
} else {
    println("Equal")
}</pre>

B

<pre>if (a === b && a == b) {
    println("Equal")
} else {
    println("Not Equal")
}</pre>

C

<pre>if (a == b) {
    println("Not Equal")
} else if (a === b) {
    println("Equal")
} else {
    println("Not Equal")
}</pre>

D

<pre>if (a == b || a === b) {
    println("Equal")
} else {
    println("Not Equal")
}</pre>

Step-by-Step Solution

Solution:

Step 1: Understand the condition needed
We want to print "Equal" if either a == b (same content) OR a === b (same object) is true.

Step 2: Check each option's logic

if (a == b || a === b) {
    println("Equal")
} else {
    println("Not Equal")
}

uses logical OR (||) correctly.

if (a === b && a == b) {
    println("Equal")
} else {
    println("Not Equal")
}

requires both to be true (AND), which is too strict.

if (a == b) {
    println("Not Equal")
} else if (a === b) {
    println("Equal")
} else {
    println("Not Equal")
}

incorrectly prints "Not Equal" when a == b is true.

if (a === b) {
    println("Equal")
} else if (a == b) {
    println("Not Equal")
} else {
    println("Equal")
}

prints "Not Equal" incorrectly when a == b is true but a === b is false.

Final Answer:
if (a == b || a === b) -> Option D
Quick Check:
Use || to combine == and === checks [OK]

Quick Trick: Use || to check either structural or referential equality [OK]

Common Mistakes:

MISTAKES

Using && instead of ||
Confusing order of conditions
Printing wrong messages for conditions

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Which code snippet correctly prints "Equal" if either condition is true, and "Not Equal" otherwise?

Step 1: Understand the condition needed

Step 2: Check each option's logic

Final Answer:

Quick Check:

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