3. Write Regular Expression (RE) that recognizes various forms of variables in JAVA which should include c. the simple variable (e.g. abc, b_c, x10, etc.) d. array variables (e.g. a[10], a[10][10], a[10][10][10], etc.) e. class members (e.g. a.data, a.data.name, etc.) f. composite variables that are combinations of the above forms (e.g. a.bb[100][200][300], data.mdata.bb[100info ) You can assume the array index can only be a number (should have been an expression) g