看例子练apachecommons之lang篇看commons包时的相关练习,可以用这个包提高编码效率。1.packagecn.org.c4c.test.apache;2.3.importjava.io.File;4.importjava.io.FileInputStream;5.importjava.io.FileNotFoundException;6.importjava.io.FileOutputStream;7.importjava.io.IOException;8.importjava.util.Calendar;9.importjava.util.Date;10.importjava.util.Iterator;11.12.importorg.apache.commons.lang.ArrayUtils;13.importorg.apache.commons.lang.CharSet;14.importorg.apache.commons.lang.CharSetUtils;15.importorg.apache.commons.lang.ClassUtils;16.importorg.apache.commons.lang.ObjectUtils;17.importorg.apache.commons.lang.RandomStringUtils;18.importorg.apache.commons.lang.SerializationUtils;19.importorg.apache.commons.lang.StringEscapeUtils;20.importorg.apache.commons.lang.StringUtils;21.importorg.apache.commons.lang.SystemUtils;22.importorg.apache.commons.lang.builder.EqualsBuilder;23.importorg.apache.commons.lang.builder.HashCodeBuilder;24.importorg.apache.commons.lang.builder.ToStringBuilder;25.importorg.apache.commons.lang.builder.ToStringStyle;26.importorg.apache.commons.lang.math.NumberUtils;27.importorg.apache.commons.lang.time.DateFormatUtils;28.importorg.apache.commons.lang.time.DateUtils;29.importorg.apache.commons.lang.time.StopWatch;30.31.publicclassLangDemo{32.publicvoidcharSetDemo(){33.System.out.println("**CharSetDemo**");34.CharSetcharSet=CharSet.getInstance("aeiou");35.StringdemoStr="Thequickbrownfoxjumpsoverthelazydog.";36.intcount=0;37.for(inti=0,len=demoStr.length();i
