java - Error:Could not find or load main -

it gives me error when launch, class name aqueueclass help?

 package `com.thekyle.hi;`      class qdemo {         // queue class characters         char q[]; // array holds queue         int putloc, getloc; // put , indices          qdemo(int size) {             q = new char[size + 1];             putloc = getloc = 0;          }// put character queue          void put(char ch) {             if (putloc == q.length - 1) {                 system.out.println(" - queue full silly- ");                 return;             }              putloc++;             q[putloc] = ch;          }          char get() {// gets character queue             if (getloc == putloc) {                 system.out.println(" queue empty");                 return (char) 0;             }             getloc++;             return q[getloc];         }     }            class aqueueclass {             public static void main(string args[]) {                         qdemo bigq = new qdemo(100);                 qdemo smallq = new qdemo(4);                 char ch;                 int i;                 system.out.println("using bigq store alphabet");                 (i = 0; < 26; i++) {                     bigq.put((char) ('a' + i));                     // retrieve , display elements bigq                     system.out.println("contents of bigq: ");                     (i = 0; < 26; i++) {                         ch = bigq.get();                         if (ch != (char) 0)                             system.out.print(ch);                      }                     system.out.println("\n");                     system.out.println("using small q generate errors");                     (i = 0; < 5; i++) {                         system.out.print("attemting store " + (char) ('z' - i));                         smallq.put((char)('z' - i));                         system.out.println();                      }                     system.out.println();                     system.out.println("contents of smallq: ");                     (i = 0; < 5; i++) {                         ch = smallq.get();                         if( ch != (char) 0 ) system.out.print(ch);                     }                   }              }         } 

if class path problem, find class path? , since says need more detail, here filler.

by name have save java file. if have 2 class in java file try made class containing main() method public class.