Difference between revisions of "Code Snippet: Prompt for Yes or No"
From Coder Merlin
(Created page with "// Prompt the user for 'yes' or 'no' var line : String? repeat { print("Please enter 'yes' or 'no' ->", terminator:"") line = readLine() } while (line == nil || (lin...") |
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= Prompt the user to input either a "yes" or a "no" = | |||
== Swift == | |||
<syntaxhighlight lang="swift"> | |||
// Prompt the user for 'yes' or 'no' | // Prompt the user for 'yes' or 'no' | ||
var line : String? | var line : String? | ||
| Line 7: | Line 11: | ||
// By the time we get here, line! is either "yes" or "no" | // By the time we get here, line! is either "yes" or "no" | ||
</syntaxhighlight> | |||
== Python == | |||
<syntaxhighlight lang="python"> | |||
text = input("Please enter 'yes' or 'no' ->") | |||
while text != "yes" and text != "no": | |||
text = input("Please enter 'yes' or 'no' ->") | |||
</syntaxhighlight> | |||
== Java == | |||
<syntaxhighlight lang="java"> | |||
Scanner input = new Scanner(System.in); // don't forget to import Scanner in java.util | |||
System.out.print("Please enter 'yes' or 'no': "); // use println to go to the next line | |||
String userInput = input.next(); // for string in same line | |||
// Look up Scanner java for more information | |||
</syntaxhighlight> | |||
Latest revision as of 09:50, 15 January 2020
Within these castle walls be forged Mavens of Computer Science ...
— Merlin, The Coder
Prompt the user to input either a "yes" or a "no"[edit]
Swift[edit]
// Prompt the user for 'yes' or 'no'
var line : String?
repeat {
print("Please enter 'yes' or 'no' ->", terminator:"")
line = readLine()
} while (line == nil || (line! != "yes" && line! != "no"))
// By the time we get here, line! is either "yes" or "no"
Python[edit]
text = input("Please enter 'yes' or 'no' ->")
while text != "yes" and text != "no":
text = input("Please enter 'yes' or 'no' ->")
Java[edit]
Scanner input = new Scanner(System.in); // don't forget to import Scanner in java.util
System.out.print("Please enter 'yes' or 'no': "); // use println to go to the next line
String userInput = input.next(); // for string in same line
// Look up Scanner java for more information
