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Golang Program To Create Pyramid And Pattern
In this tutorial, we will learn how to create pyramids with different patterns in Go programming language
Syntax
NESTED FOR LOOP
for [condition | ( init; condition; increment ) | Range] {
for [condition | ( init; condition; increment ) | Range] {
statement(s);
}
statement(s);
}
Example 1: Golang code to Create Pyramid And Pattern Using $
Algorithm
Step 1 − Import the package fmt.
Step 2 − Start function main ().
Step 3 − Declare and initialize the variables.
Step 4 − Use of for loop with condition and incrementor.
Step 5 − Print the result using fmt.Println ().
Example
package main // fmt package provides the function to print anything import "fmt" func main() { // declare the integer variables var i, j, rows int rows = 7 // Scanln() reads data from rows and stores it in the places // specified by the additional arguments in the parameter format fmt.Scanln(&rows) fmt.Println("\nGolang program to create pyramid and pattern") for i = 1; i <= rows; i++ { for j = 1; j <= rows-i; j++ { fmt.Print(" ") } for k := 0; k != (2*i - 1); k++ { fmt.Print("$") } fmt.Println() } }
Output
Golang program to create pyramid and pattern
$
$$$
$$$$$
$$$$$$$
$$$$$$$$$
$$$$$$$$$$$
$$$$$$$$$$$$$
Description of the Code
In the above program, we first declare the package main.
We have imported the fmt package that includes the files of package fmt.
Now start the function main () and this function is the entry point of the executable program. It does not take any argument nor return anything.
Declare the three integer variables i, j and rows. Initialize the rows variable to an integer value you want for pyramid of $ pattern pattern. Use fmt.Scanln () to read and store the rows value.
Using for loop: The condition is given inside an if statement and stop execution is mentioned once the condition is right.
And last printing the result in the form of a pyramid with $ pattern on the screen using fmt.Println () function.
Example 2: Golang Code to Create a Pyramid with Number Pattern
Algorithm
Step 1 − Import the package fmt and package strconv.
Step 2 − Start function main ().
Step 3 − Declare and initialize the variable rows.
Step 4 − Initialize k=0, NUM1=0, rows=5, NUM2=0.
Step 5 − Use of for loop with condition and incrementor.
Step 5 − Print the result using fmt.Println ().
Example
package main // fmt package provides the function to print anything import "fmt" func main() { // DECLARE AND INITIALIZE THE INTEGER VARIABLES var rows, NUM1, NUM2, k int = 5, 0, 0, 0 // USING FOR LOOP for i := 1; i <= rows; i++ { k = 0 for space := 1; space <= rows-i; space++ { fmt.Print(" ") NUM1++ } for { if k == 2*i-1 { break } if NUM1 <= rows-1 { fmt.Printf("%d ", i+k) NUM1++ } else { NUM2++ fmt.Printf("%d ", (i + k - 2*NUM2)) } k++ } NUM2, k, NUM1 = 0, 0, 0 fmt.Println("") } // PRINT THE PYRAMID WITH NUMBER PATTERN }
Output
1 2 3 2 3 4 5 4 3 4 5 6 7 6 5 4 5 6 7 8 9 8 7 6 5
Description of the Code
In the above program, we first declare the package main.
We imported the fmt package that includes the files of package fmt.
Now start the function main () and this function is the entry point of the executable program. It does not take any argument nor return anything.
Declare the four integer variables NUM1, NUM2, k and rows. Initialize the rows variable to an integer value you want for pyramid of numbers pattern. Use fmt.Scanln () to read and store the rows value.
Using for loop − The condition is given inside an if statement and stop execution is mentioned once the condition is right.
And last printing the result in the form of a pyramid with numbers pattern on the screen using fmt.Println () function.
Example 3: Golang Program code to Create a pyramid Using Alphabets Pattern
Algorithm
Step 1 − Import the package fmt and package strconv.
Step 2 − Start function main ().
Step 3 − Declare and initialize the variables.
Step 4 − Use of for loop with condition and incrementor.
Step 5 − Print the result using fmt.Println().
Example
package main // fmt package provides the function to print anything import "fmt" func main() { // declare and initialize the integer variable var rows int rows = 7 fmt.Scanf("%d", &rows) fmt.Printf("Golang program to create pyramid and pattern\n") alphabet := 64 i := 1 // using for loop for i <= rows { j := 1 for j <= rows-i { fmt.Printf(" ") j++ } k := i for 0 < k { fmt.Printf("%c", alphabet+k) k-- } l := 2 for l <= i { fmt.Printf("%c", alphabet+l) l++ } fmt.Printf("\n") i++ } // print the result }
Output
Golang program to create pyramid and pattern
A
BAB
CBABC
DCBABCD
EDCBABCDE
FEDCBABCDEF
GFEDCBABCDEFG
Description of the Code
In the above program, we first declare the package main.
We imported the fmt package that includes the files of package fmt.
Now start the function main () and this function is the entry point of the executable program. It does not take any argument nor return anything.
Declare the variable rows and initialize the variable to an integer value you want for pyramid of alphabets pattern. Use fmt.Scanln () to read and store the rows value.
Using for loop: The condition is given inside an if statement and stop execution is mentioned once the condition is right.
And last printing the result in the form of a pyramid with alphabet pattern on the screen using fmt.Println () function.
Conclusion
We have successfully compiled and executed the Golang program code to create pyramid with patterns of $, numbers and alphabet patterns using for loop in the above three examples.
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