To check if a string s contains the prefix "Java", you may write A. if (s. startsWith("Java")) ... B. if (s. indexOf("Java") == 0) ... C. if (s. substring(0, 4).equals("Java")) ... D. if (s. charAt(0) == 'J' && s. charAt(1) == 'a' && s. charAt(2) == 'v' && s. charAt(3) == 'a') ...

Write the quartstogallons java class that declares a named constant to hold the number of quarts in a gallon (4). also declare a variable to represent the number of quarts needed for a painting job, and assign an appropriate value—for example, 18. compute and display the number of gallons and quarts needed for the job. display explanatory text with the values, for example:

When running anti-virus software , what could be a reason where recipitent is not guaranteed that data being streamed will not get interrupted?

How do we use the sumif formula (when dealing with different formats) ?