Driver code .
public static void main ( String [ ] args ) { String str1 = "124684622466842024680246842024662202000002" ; String str2 = "1" ; String str3 = "128" ; System . out . println ( isPowerOf2 ( str1 ) + "NEW_LINE"+isPowerOf2(str2) +NEW_LINE"NEW_LINE"+isPowerOf2(str3)); } }