http://outofmemory.cn/code-snippet/815/java-zishutongji
一个api，位于apache.commons.lang.StringUtils类下的一个StringUtils.countMatches(paragraph, string);方法，这个方法返回值是一个数字
一个api，位于apache.commons.lang.StringUtils类下的一个StringUtils.countMatches(paragraph, string);方法，这个方法返回值是一个数字
代码：
package cn.outofmemory;
import org.apache.commons.lang3.StringUtils;
public class WordCounter {
public static void main(String[] args) {
// String with our paragraph
String paragraph = "Java Code Geeks (JCGs) is an independent online community focused on creating the"
+ "ultimate Java-to-Java developers resource center; targeted at the technical architect, technical"
+ "team lead (senior developer), project manager and junior developers alike. JCGs serve the Java, "
+ "Scala, Android, SOA, Agile and Telecom communities with daily news written by domain experts, "
+ "articles, tutorials, reviews, announcements, code snippets and open source projects.";
// Declare the word you want to search
String string = "Java";
// Count word repetitions
int counter = StringUtils.countMatches(paragraph, string);
// Print the result
System.out.println("Word <" + string + "> appeared " + counter + " times in the paragraph.");
}
}