This section contains the Golang Goroutine, Map, and Reflection find output programs (set 4) with their output and explanations.
Program 1:
package main
import "fmt"
func main() {
CountryCode := make(map[string]int)
CountryCode["ind"] = 101
CountryCode["aus"] = 102
CountryCode["eng"] = 103
CountryCode["pak"] = 104
CountryCode["usa"] = 105
fmt.Println("Length of CountryCode: ", len(CountryCode))
}
Program 2:
package main
import "fmt"
func main() {
CountryCode := make(map[string]int)
CountryCode["ind"] = 101
CountryCode["aus"] = 102
CountryCode["eng"] = 103
CountryCode["pak"] = 104
CountryCode["usa"] = 105
fmt.Printf("\nMap elements: ")
for value := range CountryCode.values() {
fmt.Printf("\n%d", value)
}
}
Program 3:
package main
import "fmt"
func main() {
CountryCode := make(map[string]int)
CountryCode["ind"] = 101
CountryCode["aus"] = 102
CountryCode["eng"] = 103
CountryCode["pak"] = 104
CountryCode["usa"] = 105
fmt.Printf("\nMap elements: ")
for Key, Value := range CountryCode {
fmt.Printf("\n%s : %d", Key, Value)
}
}
Program 4:
package main
import "fmt"
import "reflect"
func main() {
var num1 int = 10
var num2 byte = 20
var str string = "Hello"
fmt.Println("Type of num1 is: ", reflect.TypeOf(num1))
fmt.Println("Type of num2 is: ", reflect.TypeOf(num2))
fmt.Println("Type of str is : ", reflect.TypeOf(str))
}
Program 5:
package main
import "fmt"
import "reflect"
func main() {
fmt.Println("Type is: ", reflect.TypeOf(10))
fmt.Println("Type is: ", reflect.TypeOf("Hello"))
}
Go programming
Answer Program 1:
Output:
Explanation:
In the above program, we created a map CountryCode to store codes of different countries. Then we printed the count of map elements.
Answer Program 2:
Output:
Explanation:
The above program will generate a syntax error because the values() method is not available in this context.
Answer Program 3:
Output:
Explanation:
In the above program, we created a map CountryCode to store codes of different countries. Then we printed the keys and values of the created map using "range".
Answer Program 4:
Output:
Explanation:
In the above program, we created three different types of variables with some initial values. Then we printed the type of created variables using reflect.TypeOf() function and print the result.
Answer Program 5:
Output:
Explanation:
In the above program, we printed the type of specified values using reflect.TypeOf() function and print the result.
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