String literal. A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program.
As usual, the devil is in the details. For instance, with some prepaid wireless plans, your minutes are only good for a limited time, usually 30 to 90 days. If you don't use them before they expire, they are simply subtracted from your account anyway.
Some prepaid cell phone companies allow users to buy a certain number of minutes for a specific price while others charge a fee for each minute that is used. Many users switch to prepaid cell phones, or âpay-as-you-goâ phones, in order to avoid the penalty fees associated with most contract plans.