equalsIgnoreCase("") problem !!!!

Hi
i have problem to use this method
even i type correct or wrong string is still loop

do {
                  menu();
                  empName = input.next();
            } while (!(empName.trim().equalsIgnoreCase("E2001"))
                        || !(empName.trim().equalsIgnoreCase("E277"))));

any suggestion to use not with comparing two string

thanks in advanced

Programming Languages-OtherJava

Last Comment

ang3lus

8/22/2022 - Mon

Mick Barry

5/17/2011

should be && not ||

} while (!(empName.trim().equalsIgnoreCase("E2001"))
&& !(empName.trim().equalsIgnoreCase("E277"))));

Mick Barry

5/17/2011

or

} while (!(empName.trim().equalsIgnoreCase("E2001")
|| empName.trim().equalsIgnoreCase("E277")));

ang3lus

5/17/2011

ASKER

there problem is not with loop
even if use !equalingnorecase with if ==> if statement always not true
if(!(empName.trim().equalsIgnoreCase("E2001"))
syso("print something");

is there any alternative way to use ! with string

i use trim to omit any space in string, i used next() and nextLine()
same problem without any luck

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Mick Barry

5/17/2011

no thats fine. what you are doing is the correct way to do the comparison
If it is false then the two strings must be the same
print them out to check

System.out.println(empName);

ang3lus

5/17/2011

ASKER

iam still confuse with that
can you see what problem in this code

i create simple program to test ! with equalIgnoreCase

if the user enter wrong course code the program should ask user to enter correct code
correct code is CS100 and CS200

even i enter CS100 and CS200 and other value , the loop is still continue
what's problem!!!

thanks

do
{
 crsCode = input.nextLine();
 System.out.println("wrong course code");
} while (!(crsCode.trim().equalsIgnoreCase("CS100")) !(crsCode.trim().equalsIgnoreCase("CS200"))

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ASKER CERTIFIED SOLUTION

Mick Barry

5/17/2011

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