Hope this helps. It is there in the documentation.

	public static void querySample() {

		try {
			String soqlQuery = "SELECT FirstName, LastName FROM Contact LIMIT 5000";
			QueryResult result = connection.query(soqlQuery);
			boolean done = false;
			int counter = 0;
			if (result.getSize() > 0) {
				System.out.println("\nLogged-in user can see " +
				result.getRecords().length +
				" contact records."
				);
				while (!done) {
					++counter;
					SObject[] records = result.getRecords();
					for (int i = 0; i < records.length; ++i) {
						Contact con = (Contact) records[i];
						String fName = con.getFirstName();
						String lName = con.getLastName();
						if (fName == null) {
							System.out.println("Contact " + (i + 1) +
							": " + lName
							);
						} else {
							System.out.println("Contact " + (i + 1) + ": " +
							fName + " " + lName
							);
						}
					}
					if (result.isDone()) {
						done = true;
					} else {
						result =
						connection.queryMore(result.getQueryLocator());
					}
				}
			} else {
				System.out.println("No records found.");
			}
			System.out.println("\nQuery succesfully executed. Records fetched. " + counter);
		} catch (ConnectionException ce) {
			ce.printStackTrace();
		}

	}