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hector pulido
2,763 Pointsin this case the Boolean declaretion is a variable or what ? why in the bigining we declare the bolean without a value
I wanna know why we can declare a variable = to not value and the bolean not String response = ""; boolean isInvalidWord;
// I have initialized a java.io.Console for you. It is in a variable named console.
String response =" ";
boolean isInvalidWord;
do {
response = console.readLine("Do you understand do while loops? ");
isInvalidWord = (response.equalsIgnoreCase("No"));
if (isInvalidWord);
} while(isInvalidWord);
console.printf("Because you said %s,you passed the test!",response);
1 Answer
![jb30](https://secure.gravatar.com/avatar/681668d7cc4c5486851384a0feddda37?s=96&d=https%3A%2F%2Fecs-static.teamtreehouse.com%2Fassets%2Fcontent%2Fdefault_avatar-445fbbabfc8dc9188fb5967fe43322ee0c3e0dd1e10f378bf8343784af5a13eb.webp&r=pg)
jb30
44,806 PointsIn the line boolean isInvalidWord;
the variable isInvalidWord
is declared to be of the type boolean. Any boolean value you give it in its declaration will be ignored because inside the do-while loop, its value is set to (response.equalsIgnoreCase("No"));
before its value is checked. You could similarly change String response =" ";
to String response;
, since whatever value it has gets overwritten in the first line inside the do
section of the do-while loop. The do
section of the do-while loop runs once before the while
condition is checked.
isInvalidWord
and response
are declared before the do-while loop so that their values are accessible outside the do
section of the do-while loop.
The line if (isInvalidWord);
does not do anything with its result, and can be removed.