In an array, store zero or more than zero elements in it. which means the index of the first element is array [0] and the index of the last element is an array [len(array)-1].

Arrays are created in two different ways:

1. Using var keyword

1. Go program to illustrate how to create:

   package main
   import "fmt"
   
   func main() {
       var a [5]int
       fmt.Println(" size of the array: ", a)
   }
   

   Output :

   PS C:\GO_Language\Array> go run arr.go
   thr size of the array [0 0 0 0 0]
   

2. Go program to illustrate the values of an array

   package main
   
   import "fmt"
   
   func main() {
       a: = [5]int {1, 3, 4, 2, 5}
       sum: = 0
       for i: = 0; i 
   Output:
   PS C:\GO_Language\Array> go run arr2.go
   The value : 1
   The value : 4
   The value : 8
   The value : 10
   The value : 15
   
   

3. Go program to illustrate and insert the values in an array using for loop

   package main
   
   import "fmt"
   
   func main() {
       var n [10]int
       var i, j int
       for i = 0; i 
   Output :
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   PS C:\GO_Language\Array> go run arr3.go
   Element[0] =100
   Element[1] =101
   Element[2] =102
   Element[3] =103
   Element[4] =104
   Element[5] =105
   Element[6] =106
   Element[7] =107
   Element[8] =108
   Element[9] =109
   
   

4. Go program to illustrate the Address of a variable

   package main
   import "fmt"
   
   func main() {
       x: = 7
       y: = &x
       fmt.Println(x, y)
   
   }
   

   Output:

   PS C:\GO_Language\Array> go run arr4.go
   7 0xc000014088
   

5. Go program to illustrate Assigning values through pointers

   package main
   
   import "fmt"
   func main() {
       i, j: = 42, 2372
       p: = &i
       fmt.Println(*p)
       *p = 21
       fmt.Println(i)
       p = &j
       *p = *p / 37
       fmt.Println(j)
   
   }
   

   Output:

   PS C:\GO_Language\Array> go run arr5.go
   42
   21
   64
   PS C:\GO_Language\Array>
   

6. Go program to illustrate the value of null pointer.

   package main
   
   import "fmt"
   
   func main() {
       var ptr *int
       fmt.Printf("the Value of ptr is :%x\n", ptr)
   }
   

   Output :

   PS C:\GO_Language\Array> go run arr6.go
   the Value of ptr is :0
    
   

7. Go program to illustrate the division using pointer

   package main
   
   import "fmt"
   
   func main() {
       i, j: = 42, 2372
       p: = &i
       fmt.Println(*p)
       fmt.Printf("%T \n ", p)
   
       *p = 21
       fmt.Println(i)
       p = &j
       *p = *p / 37
       fmt.Println(j)
   
   }
   

   Output :

   PS C:\GO_Language\Array> go run arr7.go
   42
   *int 
    21
   64
   

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