please full explanation

- Please explain the - int vol = "2"; Java codes in the following table - int Num =66; whether it is correct, . int a,b,c; and if it is a valid code, please describe - int 6 pack =9; the code's aim. - int ab=203; - If it is wrong, then explain why it is - for (int x=5;x>=0;x{ System.out.println (x);} wrong. - double[] data = new int[10]; - int[] squares ={0,1,4,9,16}; - import java.util.*; ArrayList names = new ArrayList (); - if (3+6==9;){ System.out.println("Result 9");\}