java實驗報告實驗二

1、Java技術(shù)實驗（：2014年 12月 12 13-3學(xué)號實Java技術(shù)實驗（：2014年 12月 12 13-3學(xué)號實驗語 3掌握字符串類（String, StringBuffer）的使用。4掌握用通過引入FileReader 類對inventory.txt，tran處理后再用FileWriter 類將相應(yīng)的數(shù)據(jù)存入errors.txt，ship.txt，newinventory.txt 中。(算法、原程序importjava.io.BufferedReader; import java.io.BufferedWriter;import(算法、原程序importjava.io.Buffere

2、dReader; import java.io.BufferedWriter;importjava.io.FileNotFoundException; import java.io.FileReader;importimportclass String Stringpending_item=newStringpending_customs=new Stringdelete_item=newStringlen;Stringerror_item=newStringerror_customs=newStringship String_customs=new _ voidreadmessage()th

3、rowsStringship String_customs=new _ voidreadmessage()throwsFileReaderfr=newFileReader(d:experiment1inventory.txt); BufferedReader br=new BufferedReader(fr);String ionvoidread_transmessage()throwsFileReaderfr1=newFileReader(d:experiment1tran BufferedReader br1=new BufferedReader(fr1);String strline=n

4、ull; String word=strline.split(t); inventory中,FileReaderfr2=newFileReader(d:experiment1tran BufferedReader br2=new BufferedReader(fr2);String word=strline.split(t);if(word0.equalsIgnoreCase(O)/如果是發(fā)貨信息O,String word=strline.split(t);if(word0.equalsIgnoreCase(O)/如果是發(fā)貨信息O, /O,DvoidString序tag=0;/tag10_ t

5、ag=0;/tag10_ voidouttotxt()throwsIOException,ArrayIndexOutOfBoundsException String BufferedWriter bw1=new BufferedWriter(fw1); voidouttotxt()throwsIOException,ArrayIndexOutOfBoundsException String BufferedWriter bw1=new BufferedWriter(fw1); rStringFileWriterfw2=new 并,tag0_FileWriterfw2=new 并,tag0_String_String FileWriterfw3=newFileWriter(d:experiment1errors.txt); BufferedWriter bw3=new BufferedWriter(fw3); FileWriterfw3=newFileWriter(d:experiment1errors.txt); BufferedWriter bw3=new BufferedWriter(fw3); StringStringpublicclassInventorypublic s