需求分析
1、读取文本文件并在结果中显示（也可以选择不显示）
2、统计单词出现的次数
3、对结果进行排序、输出
功能实现
1、在结果中显示文本内容
File yw = new File("java.txt"); //使用循环读取本地文本文件“java.txt”中的字符并显示出来 FileInputStream cp = new FileInputStream(yw); char yy; System.out.println("该文件中的内容如下："); for(int i=0;i<yw.length();i++){ yy=(char)cp.read(); System.out.print(yy); } System.out.println(); cp.close();
2、用BuffereReader类读取文本，用TreeSet对单词进行排序 ，并用String[ ]保存分隔都的字符
BufferedReader bf = new BufferedReader(new FileReader("java.txt"));//使用缓冲区创造缓冲字符输入流 StringBuffer sbf = new StringBuffer(); //动态字符串数组 Set<String> SetSer = new TreeSet<String>();//String类型的对象的集合Set，并且是词语的首字母是有序的 String temp = bf.readLine(); //读取文本行 while(temp !=null ){ sbf.append(temp+" "); //往动态字符串数组里添加数据 temp = bf.readLine(); } String[] Str = sbf.toString().split("[^A-Za-z0-9]"); //进行分隔字符，并保存到数组里
3、使用循环对单词出现次数进行统计
for(String string:Str){ //使用循环将分离出来的词语与整体进行对比、统计，若词语重复，则数量增加；否则词语更新 SetSer.add(string); } for(String childString:SetSer){ System.out.print(childString); int count = 0; for(String fatherString : Str){ if(fatherString.equals(childString)){ count++; } } System.out.println("出现"+count+"次"); //结果输出 }
结果输出显示
1、文本内容显示
该文件中的内容如下： General Westmoreland, General Grove, distinguished guests, and gentlemen of the Corps! As I was leaving the hotel this morning, a doorman asked me, "Where are you bound for, General?" And when I replied, "West Point," he remarked, "Beautiful place. Have you ever been there before?" No human being could fail to be deeply moved by such a tribute as this [Thayer Award]. Coming from a profession I have served so long, and a people I have loved so well, it fills me with an emotion I cannot express. But this award is not intended primarily to honor a personality, but to symbolize a great moral code -- the code of conduct and chivalry of those who guard this beloved land of culture and ancient descent. That is the animation of this medallion. For all eyes and for all time, it is an expression of the ethics of the American soldier. That I should be integrated in this way with so noble an ideal arouses a sense of pride and yet of humility which will be with me always: Duty, Honor, Country. Those three hallowed words reverently dictate what you ought to be, what you can be, what you will be. They are your rallying points: to build courage when courage seems to fail; to regain faith when there seems to be little cause for faith; to create hope when hope becomes forlorn. Unhappily, I possess neither that eloquence of diction, that poetry of imagination, nor that brilliance of metaphor to tell you all that they mean. The unbelievers will say they are but words, but a slogan, but a flamboyant phrase. Every pedant, every demagogue, every cynic, every hypocrite, every troublemaker, and I am sorry to say, some others of an entirely different character, will try to downgrade them even to the extent of mockery and ridicule. But these are some of the things they do. They build your basic character. They mold you for your future roles as the custodians of the nation's defense. They make you strong enough to know when you are weak, and brave enough to face yourself when you are afraid. They teach you to be proud and unbending in honest failure, but humble and gentle in success; not to substitute words for actions, not to seek the path of comfort, but to face the stress and spur of difficulty and challenge; to learn to stand up in the storm but to have compassion on those who fall; to master yourself before you seek to master others; to have a heart that is clean, a goal that is high; to learn to laugh, yet never forget how to weep; to reach into the future yet never neglect the past; to be serious yet never to take yourself too seriously; true wisdom, the meekness of true strength. They give you a temper of the will, a quality of the imagination, a vigor of the emotions, a freshness of the deep springs of life, a temperamental predominance of courage over timidity, of an appetite for adventure over love of ease. They create in your heart the sense of wonder, the unfailing hope of what next, and the joy and inspiration of life. They teach you in this way to be an officer and a gentleman. And what sort of soldiers are those you are to lead? Are they reliable? Are they brave? Are they capable of victory? Their story is known to all of you. It is the story of the American man-at-arms. My estimate of him was formed on the battlefield many, many years ago, and has never changed. I regarded him then as I regard him now -- as one of the world's noblest figures, not only as one of the finest military characters, but also as one of the most stainless. His name and fame are the birthright of every American citizen. In his youth and strength, his love and loyalty, he gave all that mortality can give. He needs no eulogy from me or from any other man. He has written his own history and written it in red on his enemy's breast. But when I think of his patience under adversity, of his courage under fire, and of his modesty in victory, I am filled with an emotion of admiration I cannot put into words. He belongs to history as furnishing one of the greatest examples of successful patriotism. He belongs to posterity as the instructor of future generations in the principles of liberty and freedom. He belongs to the present, to us, by his virtues and by his achievements. In 20 campaigns, on a hundred battlefields, around a thousand campfires, I have witnessed that enduring fortitude, that patriotic self-abnegation, and that invincible determination which have carved his statue in the hearts of his people. From one end of the world to the other he has drained deep the chalice of courage. As I listened to those songs [of the glee club], in memory's eye I could see those staggering columns of the First World War, bending under soggy packs, on many a weary march from dripping dusk to drizzling dawn, slogging ankle-deep through the mire of shell-shocked roads, to form grimly for the attack, blue-lipped, covered with sludge and mud, chilled by the wind and rain, driving home to their objective, and for many, to the judgment seat of God. I do not know the dignity of their birth, but I do know the glory of their death. They died unquestioning, uncomplaining, with faith in their hearts, and on their lips the hope that we would go on to victory. Always, for them: Duty, Honor, Country; always their blood and sweat and tears, as we sought the way and the light and the truth. And 20 years after, on the other side of the globe, again the filth of murky foxholes, the stench of ghostly trenches, the slime of dripping dugouts; those boiling suns of relentless heat, those torrential rains of devastating storms; the loneliness and utter desolation of jungle trails; the bitterness of long separation from those they loved and cherished; the deadly pestilence of tropical disease; the horror of stricken areas of war; their resolute and determined defense, their swift and sure attack, their indomitable purpose, their complete and decisive victory -- always victory. Always through the bloody haze of their last reverberating shot, the vision of gaunt, ghastly men reverently following your password of: Duty, Honor, Country. The code which those words perpetuate embraces the highest moral laws and will stand the test of any ethics or philosophies ever promulgated for the uplift of mankind. Its requirements are for the things that are right, and its restraints are from the things that are wrong. The soldier, above all other men, is required to practice the greatest act of religious training -- sacrifice. In battle and in the face of danger and death, he discloses those divine attributes which his Maker gave when he created man in his own image. No physical courage and no brute instinct can take the place of the Divine help which alone can sustain him.
2、单词统计结果
20出现2次
Always出现2次
American出现3次
And出现3次
Are出现3次
As出现2次
Award出现1次
Beautiful出现1次
But出现3次
Coming出现1次
Corps出现1次
Country出现3次
Divine出现1次
Duty出现3次
Every出现1次
First出现1次
For出现1次
From出现1次
General出现3次
God出现1次
Grove出现1次
Have出现1次
He出现5次
His出现1次
Honor出现3次
I出现18次
In出现3次
It出现1次
Its出现1次
Maker出现1次
My出现1次
No出现2次
Point出现1次
That出现2次
Thayer出现1次
The出现3次
Their出现1次
They出现9次
Those出现1次
Unhappily出现1次
War出现1次
West出现1次
Westmoreland出现1次
Where出现1次
World出现1次
a出现20次
abnegation出现1次
above出现1次
achievements出现1次
act出现1次
actions出现1次
admiration出现1次
adventure出现1次
adversity出现1次
afraid出现1次
after出现1次
again出现1次
ago出现1次
all出现6次
alone出现1次
also出现1次
always出现3次
am出现2次
an出现7次
ancient出现1次
and出现43次
animation出现1次
ankle出现1次
any出现2次
appetite出现1次
are出现13次
areas出现1次
arms出现1次
around出现1次
arouses出现1次
as出现9次
asked出现1次
at出现1次
attack出现2次
attributes出现1次
award出现1次
basic出现1次
battle出现1次
battlefield出现1次
battlefields出现1次
be出现10次
becomes出现1次
been出现1次
before出现2次
being出现1次
belongs出现3次
beloved出现1次
bending出现1次
birth出现1次
birthright出现1次
bitterness出现1次
blood出现1次
bloody出现1次
blue出现1次
boiling出现1次
bound出现1次
brave出现2次
breast出现1次
brilliance出现1次
brute出现1次
build出现2次
but出现9次
by出现4次
campaigns出现1次
campfires出现1次
can出现4次
cannot出现2次
capable出现1次
carved出现1次
cause出现1次
chalice出现1次
challenge出现1次
changed出现1次
character出现2次
characters出现1次
cherished出现1次
chilled出现1次
chivalry出现1次
citizen出现1次
clean出现1次
club出现1次
code出现3次
columns出现1次
comfort出现1次
compassion出现1次
complete出现1次
conduct出现1次
could出现2次
courage出现6次
covered出现1次
create出现2次
created出现1次
culture出现1次
custodians出现1次
cynic出现1次
danger出现1次
dawn出现1次
deadly出现1次
death出现2次
decisive出现1次
deep出现3次
deeply出现1次
defense出现2次
demagogue出现1次
descent出现1次
desolation出现1次
determination出现1次
determined出现1次
devastating出现1次
dictate出现1次
diction出现1次
died出现1次
different出现1次
difficulty出现1次
dignity出现1次
discloses出现1次
disease出现1次
distinguished出现1次
divine出现1次
do出现3次
doorman出现1次
downgrade出现1次
drained出现1次
dripping出现2次
driving出现1次
drizzling出现1次
dugouts出现1次
dusk出现1次
ease出现1次
eloquence出现1次
embraces出现1次
emotion出现2次
emotions出现1次
end出现1次
enduring出现1次
enemy出现1次
enough出现2次
entirely出现1次
estimate出现1次
ethics出现2次
eulogy出现1次
even出现1次
ever出现2次
every出现5次
examples出现1次
express出现1次
expression出现1次
extent出现1次
eye出现1次
eyes出现1次
face出现3次
fail出现2次
failure出现1次
faith出现3次
fall出现1次
fame出现1次
figures出现1次
filled出现1次
fills出现1次
filth出现1次
finest出现1次
fire出现1次
flamboyant出现1次
following出现1次
for出现11次
forget出现1次
forlorn出现1次
form出现1次
formed出现1次
fortitude出现1次
foxholes出现1次
freedom出现1次
freshness出现1次
from出现6次
furnishing出现1次
future出现3次
gaunt出现1次
gave出现2次
generations出现1次
gentle出现1次
gentleman出现1次
gentlemen出现1次
ghastly出现1次
ghostly出现1次
give出现2次
glee出现1次
globe出现1次
glory出现1次
go出现1次
goal出现1次
great出现1次
greatest出现2次
grimly出现1次
guard出现1次
guests出现1次
hallowed出现1次
has出现3次
have出现6次
haze出现1次
he出现5次
heart出现2次
hearts出现2次
heat出现1次
help出现1次
high出现1次
highest出现1次
him出现4次
his出现13次
history出现2次
home出现1次
honest出现1次
honor出现1次
hope出现4次
horror出现1次
hotel出现1次
how出现1次
human出现1次
humble出现1次
humility出现1次
hundred出现1次
hypocrite出现1次
ideal出现1次
image出现1次
imagination出现2次
in出现14次
indomitable出现1次
inspiration出现1次
instinct出现1次
instructor出现1次
integrated出现1次
intended出现1次
into出现2次
invincible出现1次
is出现8次
it出现3次
its出现1次
joy出现1次
judgment出现1次
jungle出现1次
know出现3次
known出现1次
land出现1次
last出现1次
laugh出现1次
laws出现1次
lead出现1次
learn出现2次
leaving出现1次
liberty出现1次
life出现2次
light出现1次
lipped出现1次
lips出现1次
listened出现1次
little出现1次
loneliness出现1次
long出现2次
love出现2次
loved出现2次
loyalty出现1次
make出现1次
man出现3次
mankind出现1次
many出现4次
march出现1次
master出现2次
me出现4次
mean出现1次
medallion出现1次
meekness出现1次
memory出现1次
men出现2次
metaphor出现1次
military出现1次
mire出现1次
mockery出现1次
modesty出现1次
mold出现1次
moral出现2次
morning出现1次
mortality出现1次
most出现1次
moved出现1次
mud出现1次
murky出现1次
name出现1次
nation出现1次
needs出现1次
neglect出现1次
neither出现1次
never出现4次
next出现1次
no出现2次
noble出现1次
noblest出现1次
nor出现1次
not出现5次
now出现1次
objective出现1次
of出现75次
officer出现1次
on出现8次
one出现5次
only出现1次
or出现2次
other出现4次
others出现2次
ought出现1次
over出现2次
own出现2次
packs出现1次
password出现1次
past出现1次
path出现1次
patience出现1次
patriotic出现1次
patriotism出现1次
pedant出现1次
people出现2次
perpetuate出现1次
personality出现1次
pestilence出现1次
philosophies出现1次
phrase出现1次
physical出现1次
place出现2次
poetry出现1次
points出现1次
possess出现1次
posterity出现1次
practice出现1次
predominance出现1次
present出现1次
pride出现1次
primarily出现1次
principles出现1次
profession出现1次
promulgated出现1次
proud出现1次
purpose出现1次
put出现1次
quality出现1次
rain出现1次
rains出现1次
rallying出现1次
reach出现1次
red出现1次
regain出现1次
regard出现1次
regarded出现1次
relentless出现1次
reliable出现1次
religious出现1次
remarked出现1次
replied出现1次
required出现1次
requirements出现1次
resolute出现1次
restraints出现1次
reverberating出现1次
reverently出现2次
ridicule出现1次
right出现1次
roads出现1次
roles出现1次
s出现4次
sacrifice出现1次
say出现2次
seat出现1次
see出现1次
seek出现2次
seems出现2次
self出现1次
sense出现2次
separation出现1次
serious出现1次
seriously出现1次
served出现1次
shell出现1次
shocked出现1次
shot出现1次
should出现1次
side出现1次
slime出现1次
slogan出现1次
slogging出现1次
sludge出现1次
so出现3次
soggy出现1次
soldier出现2次
soldiers出现1次
some出现2次
songs出现1次
sorry出现1次
sort出现1次
sought出现1次
springs出现1次
spur出现1次
staggering出现1次
stainless出现1次
stand出现2次
statue出现1次
stench出现1次
storm出现1次
storms出现1次
story出现2次
strength出现2次
stress出现1次
stricken出现1次
strong出现1次
substitute出现1次
success出现1次
successful出现1次
such出现1次
suns出现1次
sure出现1次
sustain出现1次
sweat出现1次
swift出现1次
symbolize出现1次
take出现2次
teach出现2次
tears出现1次
tell出现1次
temper出现1次
temperamental出现1次
test出现1次
that出现13次
the出现70次
their出现11次
them出现2次
then出现1次
there出现2次
these出现1次
they出现7次
things出现3次
think出现1次
this出现7次
those出现10次
thousand出现1次
three出现1次
through出现2次
time出现1次
timidity出现1次
to出现46次
too出现1次
torrential出现1次
trails出现1次
training出现1次
trenches出现1次
tribute出现1次
tropical出现1次
troublemaker出现1次
true出现2次
truth出现1次
try出现1次
unbelievers出现1次
unbending出现1次
uncomplaining出现1次
under出现3次
unfailing出现1次
unquestioning出现1次
up出现1次
uplift出现1次
us出现1次
utter出现1次
victory出现5次
vigor出现1次
virtues出现1次
vision出现1次
war出现1次
was出现2次
way出现3次
we出现2次
weak出现1次
weary出现1次
weep出现1次
well出现1次
what出现5次
when出现8次
which出现5次
who出现2次
will出现6次
wind出现1次
wisdom出现1次
with出现6次
witnessed出现1次
wonder出现1次
words出现5次
world出现2次
would出现1次
written出现2次
wrong出现1次
years出现2次
yet出现4次
you出现16次
your出现5次
yourself出现3次
youth出现1次
Https： https://git.coding.net/yanzouzhe/ywcptj.git
SSH：git@git.coding.net:yanzouzhe/ywcptj.git
总结
因为之前的基础不是很好，所以参考了网上和书上的很多资料，但是通过自己的学习，对文本文件的读取及字符统计等方面有了深刻的了解
希望自己能不断努力，在学习中不断进步。