helper.java

多线程与并发处理是程序设计好坏优劣的重要课题

public class Helper {
    public void handle(int count, char c) {
        System.out.println("        handle(" + count + ", " + c + ") BEGIN");
        for (int i = 0; i < count; i++) {
            slowly();
            System.out.print(c);
        }
        System.out.println("");
        System.out.println("        handle(" + count + ", " + c + ") END");
    }
    private void slowly() {
        try {
            Thread.sleep(100);
        } catch (InterruptedException e) {
        }
    }
}