Notes

Week 5
package main

import "fmt"

func main(){
var rows int
var temp int = 1
fmt.Print("Enter number of rows : ")
fmt.Scan(&rows)

for i := 1; i <= rows; i++ {

for k := 1; k <= i; k++ {

fmt.Printf(" %d",temp)
temp++
}
fmt.Println("")
}

}

Week 7
package main

import (
"fmt"
"strings"
)

func main() {
var originalString string
fmt.Print("Enter a string: ")
fmt.Scanln(&originalString)

var reverseString string
length := len(originalString)

for i := length - 1; i >= 0; i-- {
reverseString += string(originalString[i])
}

if strings.ToLower(originalString) == strings.ToLower(reverseString) {
fmt.Println("The given string is a Palindrome")
} else {
fmt.Println("The given string is NOT a Palindrome")
}
}

Week 4
package main
import (
"fmt"
"math"
)
func main(){
var num[10] float64
var sum,mean,sd float64
fmt.Println("Enter 5 element")
for i := 1; i <= 5; i++ {
fmt.Printf("Enter %d element : ",i)
fmt.Scan(&num[i-1])
sum += num[i-1]
}
mean = sum/10;

for j := 0; j < 5; j++ {
sd += math.Pow(num[j] - mean, 2)
}

sd = math.Sqrt(sd/5)

fmt.Println("The Standard Deviation is : ",sd)
}

Week 6
package main

import "fmt"

func main() {
fmt.Print("Enter First String: ") //Print function is used to display output in same line
var first string
fmt.Scanln(&first) // Take input from user
fmt.Print("Enter Second String: ")
var second string
fmt.Scanln(&second)
fmt.Print(first + second) // Addition of two string
}

Week 3
go mod init family
Main.go
package main

import (
parent "family/father"
child "family/father/son"

"fmt"
)

func main() {
f := new(parent.Father)
fmt.Println(f.Data("Mr. Jeremy Maclin"))

c := new(child.Son)
fmt.Println(c.Data("Riley Maclin"))
}
Father.go
package father

import "fmt"

func init() {
fmt.Println("Father package initialized")
}

type Father struct {
Name string
}

func (f Father) Data(name string) string {
f.Name = "Father : " + name
return f.Name
}

son.go
package son

import "fmt"

func init() {
fmt.Println("Son package initialized")
}

type Son struct {
Name string
}

func (s Son) Data(name string) string {
s.Name = "Son : " + name
return s.Name
}

Week 2
package main

import "fmt"

func main() {
var rows,k,temp,temp1 int
fmt.Print("Enter number of rows :")
fmt.Scan(&rows)

for i := 1; i <= rows; i++ {

for j := 1; j <= rows-i; j++ {
fmt.Print(" ")
temp++
}
for{
if( temp <= rows-1){
fmt.Printf(" %d",i+k)
temp++
}else{
temp1++
fmt.Printf(" %d",(i+k-2*temp1))
}
k++

if(k == 2*i-1){
break
}

}
temp = 0
temp1 = 0
k = 0
fmt.Println("")
}

}

Week 1
package main
import "fmt"

/* Function without return declaration*/
func lcm(temp1 int,temp2 int) {
var lcmnum int =1
if(temp1>temp2) {
lcmnum=temp1
}else{
lcmnum=temp2
}
/* Use of For Loop as a While Loop*/
for {
if(lcmnum%temp1==0 && lcmnum%temp2==0) { // And operator
/* Print Statement with multiple variables */
fmt.Printf("LCM of %d and %d is %d",temp1,temp2,lcmnum)
break
}
lcmnum++
}
return // Return without any value
}

func gcd(temp1 int,temp2 int){
var gcdnum int
/* Use of And operator in For Loop */
for i := 1; i <=temp1 && i <=temp2 ; i++ {
if(temp1%i==0 && temp2%i==0) {
gcdnum=i
}
}
fmt.Printf("GCD of %d and %d is %d",temp1,temp2,gcdnum)
return
}


func main() {
var n1,n2,action int
fmt.Println("Enter two positive integers : ")
fmt.Scanln(&n1)
fmt.Scanln(&n2)

fmt.Println("Enter 1 for LCM and 2 for GCD")
fmt.Scanln(&action)
/* Use of Switch Case in Golang */
switch action {
case 1:
lcm(n1,n2)
case 2:
gcd(n1,n2)
}
}