I need help with this ASAP Please

In Java

Exercise 4. The following pseudocode describes how to obtain the abbreviated name of a day, given the day number (0= Sunday, 1= Monday, and so on. ) - Declare a string called names containing "SunMonTueWedThuFriSat". - Compute the starting position as 3 the day number. - Extract the substring of names at the starting position with length 3. Implement this algorithm and run it using the day number 4 . Exercise 4. The following pseudocode describes how to obtain the abbreviated name of a day, given the day number (0= Sunday, 1= Monday, and so on. ) - Declare a string called names containing "SunMonTueWedThuFriSat". - Compute the starting position as 3 the day number. - Extract the substring of names at the starting position with length 3. Implement this algorithm and run it using the day number 4