Really simple comparision

[sesstreets]

If I have the variable choice being inputted by the user, how can I use a non case sensitive comparison?

Basically without doing this:
[PHP]
choice = "a";

if(choice == "a" || choice == "A")
{...}[/PHP]

[r035198x]

If I have the variable choice being inputted by the user, how can I use a non case sensitive comparison?

Basically without doing this:
[PHP]
choice = "a";

if(choice == "a" || choice == "A")
{...}[/PHP]

Always use the .equals method for comparing strings in Java.
There's also an equalsIgnoreCase method.

[hirak1984]

Always use the .equals method for comparing strings in Java.
There's also an equalsIgnoreCase method.

but in that case, you have to override the equals method of the Object class for creating a meaningful comparison.

If you use the default ".equals" method of the Object, you are geting the same "==" comparison only.

[r035198x]

but in that case, you have to override the equals method of the Object class for creating a meaningful comparison.
...

There's no need to override anything. Like I said in my last response there is an equals and an equalsIgnoreCase method.

If you use the default ".equals" method of the Object, you are geting the same "==" comparison only.

That is not true. == compares equality of object references.
Try it with some code and give two different references the same string value. == will be false but .equals will be true.
Read about it in Sun's Java tutorial.

[hirak1984]

That is not true. == compares equality of object references.
Try it with some code and give two different references the same string value. == will be false but .equals will be true.
Read about it in Sun's Java tutorial.

well I tried something like the following:

 
        String one = "abc";
        String two = "abc";
        System.out.println(one==two);
        System.out.println(one.equals(two));
        System.out.println(one=="abc");
        System.out.println(one.equals("abc"));
        System.out.println(two=="abc");
        System.out.println(two.equals("abc"));
 

and all resulted "true"
in my eclipse.
can you mention, in which case, "==" and ".equals" will return different result?

[JosAH]

Change your first line to:

String one= new String("abc");
 

... and run your code again.

kind regards,

Jos

[Nepomuk]

Back to the original question, you could use the String.toLowerCase (or String.toUpperCase) method.
Example:

String one = new String("abc");
String two = new String("ABC");
if(one.toLowerCase.equals(two.toLowerCase))
{
   // It will come here, as both are "abc" in lower case
}
 

Greetings,
Nepomuk

[BigDaddyLH]

Back to the original question, you could use the String.toLowerCase (or String.toUpperCase) method.
Example:

String one = new String("abc");
String two = new String("ABC");
if(one.toLowerCase.equals(two.toLowerCase))
{
   // It will come here, as both are "abc" in lower case
}
 

Greetings,
Nepomuk

method equalsIngoreCase combines that into a single method.