Here, we will read a string from user using readLine() function and the readLine() function returns optional string. Then we will convert the optional string into the normal string using the "!" operator. After that, we will print the result on the console screen.
The source code to convert the optional string into the normal string is given below. The given program is compiled and executed successfully.
// Swift program to convert an optional string // into the normal stringimportSwift;var str:String="";print("Enter String:");
str =readLine()!;print("String is: ",str);
Swift
Output:
Enter String:
Hello World
String is: Hello World
...Program finished with exit code 0
Press ENTER to exit console.
Explanation:
In the above program, we imported a package Swift to use the print() function using the below statement,
import Swift;
Here, we read a string using the readLine() function. The readLine() function returns optional string. Then we converted the optional string into a normal string using the "!" operator. After that, we printed the result on the console screen.
Program/Source Code:
The source code to convert the optional string into the normal string is given below. The given program is compiled and executed successfully.
Output:
Explanation:
In the above program, we imported a package Swift to use the print() function using the below statement,
Here, we read a string using the readLine() function. The readLine() function returns optional string. Then we converted the optional string into a normal string using the "!" operator. After that, we printed the result on the console screen.
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