1 If you had the test to screen for colon cancer and you're at average risk â you have no colon cancer risk factors other than age â your doctor may recommend waiting one year and then repeating the test. 2  Positive result. 3  A fecal occult blood test is considered positive if blood is detected in your stool samples. A fecal occult blood test is considered positive if blood is detected in your stool samples. 2  You may need additional testing â such as a colonoscopy â to locate the source of the bleeding.
1 Note that we have to import java.util.InputMismatchException in order to use the InputMismatchException class.  We are using a while loop to ask the user the same question until the user enters the correct input.
The While Loop â Decision at the Beginning. The execution of a while loop is similar to the execution of a simple if statement. A condition is. checked on the first line (true or false). If the condition is true, we enter the loop and execute any. commands found within the body of the loop. If the condition is false, we exit the loop without. executing any commands.