Output using fmt.Print in Go - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to print "Hello, Go!" using fmt.Print.

Go

package main

import "fmt"

func main() {
    fmt.[1]("Hello, Go!")
}

Drag options to blanks, or click blank then click option'

APrintf

BPrintln

CPrint

DPrintfln

Attempts:

3 left

💡 Hint

Common Mistakes

Using fmt.Println adds a new line after printing.

Using fmt.Printf requires a format string with placeholders.

The fmt.Print function prints the text exactly as given without adding a new line.

2fill in blank

medium

Complete the code to print the number 42 using fmt.Print.

Go

package main

import "fmt"

func main() {
    fmt.Print([1])
}

Drag options to blanks, or click blank then click option'

A"42"

Bfmt.Println

CfortyTwo

D42

Attempts:

3 left

💡 Hint

Common Mistakes

Putting the number inside quotes prints it as a string.

Using undefined variables causes errors.

To print the number 42, pass the number directly without quotes to fmt.Print.

3fill in blank

hard

Fix the error in the code to print "Go is fun" using fmt.Print.

Go

package main

import "fmt"

func main() {
    fmt.Print([1])
}

Drag options to blanks, or click blank then click option'

AGo is fun

B"Go is fun"

C'Go is fun'

Dfmt.Println("Go is fun")

Attempts:

3 left

💡 Hint

Common Mistakes

Using unquoted text causes a compile error.

Using single quotes for strings causes errors.

Strings in Go must be inside double quotes. Single quotes are for single characters.

4fill in blank

hard

Fill both blanks to print "Sum: 15" using fmt.Print and addition.

Go

package main

import "fmt"

func main() {
    sum := 7 [1] 8
    fmt.Print("Sum: ", [2])
}

Drag options to blanks, or click blank then click option'

A+

B-

Csum

D15

Attempts:

3 left

💡 Hint

Common Mistakes

Using '-' subtracts instead of adding.

Printing the number 15 directly ignores the calculation.

The sum is calculated by adding 7 and 8 with '+'. Then print the variable sum.

5fill in blank

hard

Fill all three blanks to print "Area: 20" using fmt.Print and multiplication.

Go

package main

import "fmt"

func main() {
    length := 4
    width := [1]
    area := length [2] width
    fmt.Print("Area: ", [3])
}

Drag options to blanks, or click blank then click option'

A5

B*

Carea

D+

Attempts:

3 left

💡 Hint

Common Mistakes

Using '+' adds instead of multiplying.

Printing the number 20 directly ignores the calculation.

Width is 5, multiply length and width with '*', then print the variable area.

Practice

1. What does fmt.Print do in Go programming?

easy

A. It automatically adds a new line after printing.

B. It formats text with colors and styles.

C. It only prints variables, not text.

D. It prints text or values exactly as given without adding spaces or new lines.

Solution

1. Step 1: Understand fmt.Print behavior

   fmt.Print prints exactly what you give it without adding spaces or new lines automatically.

2. Step 2: Compare with other fmt functions

   Unlike fmt.Println, it does not add a new line after printing.

3. Final Answer:

   It prints text or values exactly as given without adding spaces or new lines. -> Option D

4. Quick Check:

   fmt.Print prints exactly as given [OK]

Hint: Remember: fmt.Print prints exactly, no extra spaces or new lines [OK]

Common Mistakes:

• Thinking fmt.Print adds a new line automatically
• Confusing fmt.Print with fmt.Println
• Assuming fmt.Print formats text with colors

2. Which of the following is the correct syntax to print two values using fmt.Print in Go?

easy

A. fmt.Print("Hello", "World")

B. fmt.Print("Hello" + "World")

C. fmt.Print("Hello" "World")

D. fmt.Print("Hello" & "World")

Solution

1. Step 1: Check how to print multiple values

   In Go, fmt.Print accepts multiple arguments separated by commas to print them together.

2. Step 2: Analyze each option

   fmt.Print("Hello", "World") uses commas correctly. fmt.Print("Hello" + "World") tries to add strings with + which is valid but prints concatenated string as one argument. fmt.Print("Hello" "World") is invalid syntax. fmt.Print("Hello" & "World") uses & which is invalid for strings.

3. Final Answer:

   fmt.Print("Hello", "World") -> Option A

4. Quick Check:

   Use commas to print multiple values [OK]

Hint: Use commas to separate values inside fmt.Print [OK]

Common Mistakes:

• Using + to join strings inside fmt.Print
• Omitting commas between values
• Using invalid operators like & between strings

3. What is the output of this Go code?

package main
import "fmt"
func main() {
    fmt.Print("Go", 1, 2)
}

medium

A. Go12

B. Go 1 2

C. Go 12

D. Go,1,2

Solution

1. Step 1: Understand fmt.Print output format

   fmt.Print prints values exactly as given without spaces or new lines unless explicitly added.

2. Step 2: Analyze the arguments

   Arguments are "Go", 1, and 2. They print one after another without spaces, so output is "Go12".

3. Final Answer:

   Go12 -> Option A

4. Quick Check:

   fmt.Print joins values without spaces [OK]

Hint: fmt.Print prints values side by side without spaces [OK]

Common Mistakes:

• Assuming spaces are added automatically
• Expecting commas or other separators
• Confusing fmt.Print with fmt.Println

4. Find the error in this Go code snippet:

package main
import "fmt"
func main() {
    fmt.Print("Hello" "World")
}

medium

A. Missing import statement

B. Missing comma between string arguments

C. fmt.Print cannot print strings

D. Missing parentheses in fmt.Print

Solution

1. Step 1: Check syntax of fmt.Print arguments

   Multiple arguments must be separated by commas in Go function calls.

2. Step 2: Identify the error

   Strings "Hello" and "World" are written without a comma, causing syntax error.

3. Final Answer:

   Missing comma between string arguments -> Option B

4. Quick Check:

   Separate multiple arguments with commas [OK]

Hint: Always separate multiple arguments with commas [OK]

Common Mistakes:

• Omitting commas between arguments
• Thinking fmt.Print can't print strings
• Forgetting import "fmt"

5. You want to print the numbers 1, 2, and 3 on the same line with spaces between them using fmt.Print. Which code snippet achieves this?

hard

A. fmt.Print("1 2 3")

B. fmt.Print(1 + 2 + 3)

C. fmt.Print(1, " ", 2, " ", 3)

D. fmt.Print(1, 2, 3)

Solution

1. Step 1: Understand fmt.Print behavior with multiple arguments

   It prints all arguments exactly as given without adding spaces automatically.

2. Step 2: Add spaces explicitly

   To print spaces between numbers, include space strings " " as separate arguments.

3. Step 3: Analyze options

   fmt.Print(1, " ", 2, " ", 3) prints 1, space, 2, space, 3 correctly. fmt.Print(1 + 2 + 3) sums numbers and prints 6. fmt.Print("1 2 3") prints a string but not numbers as values. fmt.Print(1, 2, 3) prints numbers without spaces.

4. Final Answer:

   fmt.Print(1, " ", 2, " ", 3) -> Option C

5. Quick Check:

   Add spaces as separate arguments in fmt.Print [OK]

Hint: Add spaces as separate string arguments to fmt.Print [OK]

Common Mistakes:

• Expecting fmt.Print to add spaces automatically
• Using + to join numbers instead of printing separately
• Printing numbers as a single string without variables