Java实现词频统计.docxVIP

类图和流程图 类图 总类是Article 包括两个分类，分别是word和wordcompare 流程图 创建类总类 输入文章内容 保存文章内容 保存单词集合到数组 同时统计单词的个数 统计相同单词的词频 按词频将词数组和词频数组进行降序排序 按排序输出 程序代码 import java.util.ArrayList; //引用 import java.util.Collections; import java.util.Comparator; import java.util.Iterator; import java.util.List; import java.util.Set; import java.util.TreeSet; public class Article { //建立总类Article String content; //保存文章内容 String[] rawWords; //保存单个单词集合 String[] words; //保存各个单词对应的词频 int[] wordFreqs; //输入文章内容 public Article() { content = Trusted Computer System (Trusted Computer System) of the U.S. Department + of Defense is a concept first put forward in order to ensure the confidentiality of + computer systems, the U.S. Department of Defense in the 1980s, a set of access control + mechanisms to enhance the credibility of the system And the development of the Trusted + Computer System Evaluation criteria (TCSEC). TCSEC ((from the Orange Book to the Rainbow series) + for the information systems of several key components: computer operating systems, databases, + computer network security are put forward a credible evaluation of the safety guidelines. + Norms, from the user log on to empower the management, Access control, audit trails, + hidden channels, the credibility of the computer-systems Road, the establishment of electronic + information systems, safety inspection, protection of the life cycle, text writing, + Users Guide have made regulatory requirements. And in accordance with the security policies + adopted by the system by With the safety features of the system is divided into A, B (BL B2, B3), + C (Cl, C2), D four of the seven-level security. These guidelines for the research-oriented, + standardized production, guiding the user selection of the inspection bodies Based on the evaluation, + all played a role in promoting the good. But the main consideration of security issues in general is + also limited to