Continue statement behavior in C Sharp (C#) - Practice Problems & Coding Challenges

Challenge - 5 Problems

❓ Predict Output

intermediate

Output of loop with continue inside if

What is the output of this C# code snippet?

C Sharp (C#)

for (int i = 0; i < 5; i++)
{
    if (i == 2) continue;
    Console.Write(i + " ");
}

A 0 1 2 3 4

B 0 1 3 4

C 2 3 4

D 0 1 2 4

💡 Hint

The continue statement skips the rest of the current loop iteration when i equals 2.

When i is 2, the continue statement skips printing 2 and moves to the next iteration. So 2 is not printed.

❓ Predict Output

intermediate

Continue in nested loops

What will be printed by this C# code?

C Sharp (C#)

for (int i = 0; i < 3; i++)
{
    for (int j = 0; j < 3; j++)
    {
        if (j == 1) continue;
        Console.Write($"{i}{j} ");
    }
}

A 01 11 21

B 00 01 02 10 11 12 20 21 22

C 00 02 10 12 20 22

D 00 10 20

💡 Hint

The continue skips printing when j equals 1 inside the inner loop.

When j is 1, continue skips printing that pair. So pairs with j=1 are omitted.

❓ Predict Output

advanced

Continue with while loop and increment

What is the output of this C# code?

C Sharp (C#)

int i = 0;
while (i < 5)
{
    i++;
    if (i == 3) continue;
    Console.Write(i + " ");
}

A 1 2 4 5

B 0 1 2 4 5

C 1 2 3 4 5

D 1 2 3 5

💡 Hint

The increment happens before the continue check.

When i becomes 3, continue skips printing 3. All other values print.

❓ Predict Output

advanced

Continue inside foreach loop

What will this C# code print?

C Sharp (C#)

string[] words = {"apple", "banana", "cherry"};
foreach (var word in words)
{
    if (word.StartsWith("b")) continue;
    Console.Write(word + " ");
}

A apple cherry

B cherry

C apple banana cherry

D banana cherry

💡 Hint

Continue skips words starting with 'b'.

The word "banana" starts with 'b' and is skipped. Others print.

❓ Predict Output

expert

Continue with multiple conditions in for loop

What is the output of this C# code snippet?

C Sharp (C#)

for (int i = 0; i < 6; i++)
{
    if (i % 2 == 0) continue;
    if (i == 5) continue;
    Console.Write(i + " ");
}

A 1 3 5 6

B 1 3 5

C 0 2 4

D 1 3

💡 Hint

Continue skips even numbers and also skips 5.

i=0,2,4 skipped because even; i=5 skipped explicitly; only 1 and 3 print.

Practice

1. What does the continue statement do inside a loop in C#?

easy

A. Stops the entire loop immediately

B. Skips the rest of the current loop iteration and moves to the next one

C. Exits the current method

D. Repeats the current iteration without moving forward

Solution

1. Step 1: Understand the role of continue in loops

   The continue statement tells the loop to skip the remaining code in the current iteration.

2. Step 2: Identify what happens after continue

   After skipping, the loop moves to the next iteration without stopping the whole loop.

3. Final Answer:

   Skips the rest of the current loop iteration and moves to the next one -> Option B

4. Quick Check:

   continue skips current iteration [OK]

Hint: Remember: continue skips current loop step, not whole loop [OK]

Common Mistakes:

• Confusing continue with break
• Thinking continue exits the method
• Assuming continue repeats the iteration

2. Which of the following is the correct syntax to use continue inside a for loop in C#?

easy

A. continue;

B. continue()

C. continue {}

D. continue[]

Solution

1. Step 1: Recall the syntax of continue

   In C#, continue is a statement and must be followed by a semicolon.

2. Step 2: Check each option

   Only continue; is valid syntax. The others use parentheses, braces, or brackets incorrectly.

3. Final Answer:

   continue; -> Option A

4. Quick Check:

   Correct syntax ends with semicolon [OK]

Hint: Use semicolon after continue, no parentheses [OK]

Common Mistakes:

• Adding parentheses after continue
• Using braces or brackets with continue
• Omitting the semicolon

3. What will be the output of the following C# code?

for (int i = 1; i <= 5; i++) {
  if (i == 3) continue;
  Console.Write(i + " ");
}

medium

A. 2 3 4 5

B. 1 2 3 4 5

C. 1 2 3 4

D. 1 2 4 5

Solution

1. Step 1: Analyze the loop and condition

   The loop runs from 1 to 5. When i equals 3, continue skips printing.

2. Step 2: Determine printed values

   Numbers 1, 2, 4, and 5 are printed with spaces. Number 3 is skipped.

3. Final Answer:

   1 2 4 5 -> Option D

4. Quick Check:

   continue skips printing 3 [OK]

Hint: Skip printing when continue triggers, others print [OK]

Common Mistakes:

• Including the skipped number in output
• Confusing continue with break
• Ignoring spaces in output

4. Identify the error in this C# code snippet using continue:

int i = 0;
while (i < 3) {
  if (i == 1)
    continue;
  Console.Write(i);
  i++;
}

medium

A. Syntax error: continue cannot be used in while loop

B. Missing semicolon after continue

C. Infinite loop because i++ is skipped when i == 1

D. Console.Write should be Console.WriteLine

Solution

1. Step 1: Understand loop behavior with continue

   When i == 1, continue skips i++, so i stays 1 forever.

2. Step 2: Identify the problem caused

   The loop never increments i past 1, causing an infinite loop.

3. Final Answer:

   Infinite loop because i++ is skipped when i == 1 -> Option C

4. Quick Check:

   continue skips i++ causing infinite loop [OK]

Hint: Ensure increments run before continue to avoid infinite loops [OK]

Common Mistakes:

• Thinking continue causes syntax error
• Ignoring loop variable increment
• Assuming Console.WriteLine fixes logic

5. You want to print all even numbers from 1 to 10 but skip printing 6 using a for loop and continue. Which code snippet correctly does this?

hard

A. for (int i = 2; i <= 10; i += 2) { if (i == 6) continue; Console.Write(i + " "); }

B. for (int i = 1; i <= 10; i++) { if (i % 2 == 0 && i != 6) Console.Write(i + " "); }

C. for (int i = 2; i <= 10; i++) { if (i % 2 == 0) Console.Write(i + " "); if (i == 6) continue; }

D. for (int i = 2; i <= 10; i += 2) { if (i == 6) break; Console.Write(i + " "); }

Solution

1. Step 1: Understand the goal

   Print even numbers 2,4,8,10 but skip 6 using continue inside a for loop.

2. Step 2: Check each option

   for (int i = 2; i <= 10; i += 2) { if (i == 6) continue; Console.Write(i + " "); } loops by 2, skips 6 with continue, prints others. for (int i = 1; i <= 10; i++) { if (i % 2 == 0 && i != 6) Console.Write(i + " "); } prints all evens except 6 but no continue used. for (int i = 2; i <= 10; i++) { if (i % 2 == 0) Console.Write(i + " "); if (i == 6) continue; } prints 6 because print happens before continue. for (int i = 2; i <= 10; i += 2) { if (i == 6) break; Console.Write(i + " "); } breaks at 6, stopping loop early, so 8 and 10 not printed.

3. Final Answer:

   for (int i = 2; i <= 10; i += 2) { if (i == 6) continue; Console.Write(i + " "); } -> Option A

4. Quick Check:

   Use continue to skip 6 in even-step loop [OK]

Hint: Loop evens, continue at 6 to skip it, print others [OK]

Common Mistakes:

• Using break instead of continue
• Not incrementing by 2 for evens
• Skipping continue and using if only