Output using fmt.Print in Go

Introduction

We use fmt.Print to show text or values on the screen. It helps us see what our program is doing.

When you want to show a message to the user.

When you want to check the value of a variable while coding.

When you want to print multiple values on the same line (no spaces or newline added automatically).

When you want to combine text and numbers in one line.

Syntax

Go

fmt.Print(value1, value2, ...)

fmt.Print prints the values without spaces or newline at the end.

You can print many values by separating them with commas.

Examples

Prints a simple text message.

Go

fmt.Print("Hello, world!")

Prints text and a number together without spaces added automatically.

Go

fmt.Print("Age: ", 25)

Prints two strings without spaces between them.

Go

fmt.Print("Go", "Lang")

Sample Program

This program prints the words "Hello, Go!" all together without spaces or new lines added automatically.

Go

package main

import "fmt"

func main() {
    fmt.Print("Hello")
    fmt.Print(", ")
    fmt.Print("Go")
    fmt.Print("!")
}

Important Notes

fmt.Print does not add spaces between arguments. For precise control over spacing, use multiple fmt.Print calls as shown, or fmt.Printf.

To print with a new line at the end, use fmt.Println instead.

Summary

fmt.Print shows text or values on the screen exactly as given.

It does not add spaces or new lines automatically.

Use commas to print multiple values together.

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