The ToUpper() Function is used to convert all the characters/letters of the String in upper case.
package main
import "fmt"
import "strings"
func main() {
x := "HeLLo"
y := strings.ToUpper(x)
fmt.Println("The String in upper case is :",y)
}
In the above code, we have declared a String 'HeLLo', in which the letters 'e' and 'o' are in lower case.
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So, we have used the 'ToUpper()' Function to convert them to upper case and assign to a variable 'y'.
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