stringplus.java

继承和多态 实验目的： 1、 掌握继承和多态的概念与实现方法 2、 掌握如何从已有的类中派生子类并继承父类 3、 掌握方法的覆盖和重载 实验内容： 设计一个通用的排序算法

package generalSort;

/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2008</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
public class StringPlus {
    static private String blanks;
    static private int base = 97; //lower
    static private String randomStr;
    public StringPlus() {
    }

    public static String blanks(String str, int wholelen) {
        blanks = "";
        for (int i = str.length(); i < wholelen; i++) {
            blanks += " ";
        }
        return blanks;
    }

    public static String randomString() {
        randomStr = "";
        int randomlen=(int)(Math.random()*10)+1;
        for (int i = 0; i < randomlen; i++) {
            randomStr += (char)(Math.random()*26+97);
        }
        return randomStr;
    }


}