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.
A for loop is a not usually a function, it is a special kind of statement called a flow control structure. A statement is a command. It does something. In most languages, statements do not return values. Example: A function is a subroutine that can be called elsewhere in the program. Functions often (but not necessarily) return values. Example: A control structure, also known as a compound statement, is a statement that is used to direct the flow of execution.