下面是我的java程序，其中我在一个数组中保留了一些停用词，并将这些停用词与我的文本文件中的单词进行比较，然后对于不是停用词的单词，我正在计算单词的频率。
String[] stopwords ={"a", "about", "above", "above", "across", "after", "afterwards", "again", "against", "all", "almost",
"alone", "along", "already", "also","although","always","am","among", "amongst", "amoungst", "amount", "an", "and",
"another", "any","anyhow","anyone","anything","anyway", "anywhere", "are", "around", "as", "at", "back","be","became",
"because","become","becomes", "becoming", "been", "before", "beforehand", "behind", "being", "below", "beside", "besides",
"between", "beyond", "bill", "both", "bottom","but", "by", "call", "can", "cannot", "cant", "co", "con", "could", "couldnt",
"cry", "de", "describe", "detail", "do", "done", "down", "due", "during", "each", "eg", "eight", "either", "eleven","else",
"elsewhere", "empty", "enough", "etc", "even", "ever", "every", "everyone", "everything", "everywhere", "except", "few",
"fifteen", "fify", "fill", "find", "fire", "first", "five", "for", "former", "formerly", "forty", "found", "four", "from",
"front", "full", "further", "get", "give", "go", "had", "has", "hasnt",
"have", "he", "hence", "her", "here", "hereafter", "hereby", "herein", "hereupon", "hers", "herself",
"him", "himself", "his", "how", "however", "hundred", "ie", "if", "in", "inc", "indeed", "interest", "into",
"is", "it", "its", "itself", "keep", "last", "latter", "latterly", "least", "less", "ltd", "made", "many",
"may", "me", "meanwhile", "might", "mill", "mine", "more", "moreover", "most", "mostly", "move", "much", "must",
"my", "myself", "name", "namely", "neither", "never", "nevertheless", "next", "nine", "no", "nobody", "none",
"noone", "nor", "not", "nothing", "now", "nowhere", "of", "off", "often", "on", "once", "one", "only", "onto",
"or", "other", "others", "otherwise", "our", "ours", "ourselves", "out", "over", "own","part", "per", "perhaps",
"please", "put", "rather", "re", "same", "see", "seem", "seemed", "seeming", "seems", "serious", "several", "she",
"should", "show", "side", "since", "sincere", "six", "sixty", "so", "some", "somehow", "someone", "something",
"sometime", "sometimes", "somewhere", "still", "such", "system", "take", "ten", "than", "that", "the", "their",
"them", "themselves", "then", "thence", "there", "thereafter", "thereby", "therefore", "therein", "thereupon",
"these", "they", "thickv", "thin", "third", "this", "those", "though", "three", "through", "throughout", "thru",
"thus", "to", "together", "too", "top", "toward", "towards", "twelve", "twenty", "two", "un", "under", "until",
"up", "upon", "us", "very", "via", "was", "we", "well", "were", "what", "whatever", "when", "whence", "whenever",
"where", "whereafter", "whereas", "whereby", "wherein", "whereupon", "wherever", "whether", "which", "while",
"whither", "who", "whoever", "whole", "whom", "whose", "why", "will", "with", "within", "without", "would", "yet",
"you", "your", "yours", "yourself", "yourselves","1","2","3","4","5","6","7","8","9","10","1.","2.","3.","4.","5.","6.","11",
"7.","8.","9.","12","13","14","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z",
"terms","CONDITIONS","conditions","values","interested.","care","sure",".","!","@","#","$","%","^","&","*","(",")","{","}","[","]",":",";",",","<",".",">","/","?","_","-","+","=",
"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z",
"contact","grounds","buyers","tried","said,","plan","value","principle.","forces","sent:","is,","was","like",
"discussion","tmus","diffrent.","layout","area.","thanks","thankyou","hello","bye","rise","fell","fall","psqft.","http://","km","miles"};
Scanner fip1=new Scanner(new File("c:/sample.txt"));
Map map = new TreeMap();
Integer ONE = new Integer(1);
while(fip1.hasNext()) {
int flag=1;
String s1=fip1.next();
s1=s1.toLowerCase();
for(int i=0;i<stopwords.length;i++) {
if(s1.equals(stopwords[i])) {
flag=0;
}
}
if(flag!=0) {
if (s1.length() > 0) {
Integer frequency = (Integer) map.get(s1);
if (frequency == null) {
frequency = ONE;
} else {
int value = frequency.intValue();
frequency = new Integer(value + 1);
}
map.put(s1, frequency);
System.out.println(map);
}
}
}
我得到以下输出
{contains=1}
{contains=1, java=1}
{contains=1, java=2}
{contains=1, java=2, related=1}
{contains=1, information=1, java=2, related=1}
但我想只关注o / p
{contains=1, information=1, java=2, related=1}
请建议我如何做到这一点
由于
答案 0 :(得分：3)
只需在while循环之外打印地图。
答案 1 :(得分：1)
完成while循环后移动地图。见下面的代码。
import java.util.Map;
import java.util.Scanner;
import java.util.TreeMap;
/**
*
* @author Masud
*/
public class UserRepository {
public static void main(String[] args) {
String[] stopwords = {"a", "about", "above", "above", "across", "after", "afterwards", "again", "against", "all", "almost",
"alone", "along", "already", "also", "although", "always", "am", "among", "amongst", "amoungst", "amount", "an", "and",
"another", "any", "anyhow", "anyone", "anything", "anyway", "anywhere", "are", "around", "as", "at", "back", "be", "became",
"because", "become", "becomes", "becoming", "been", "before", "beforehand", "behind", "being", "below", "beside", "besides",
"between", "beyond", "bill", "both", "bottom", "but", "by", "call", "can", "cannot", "cant", "co", "con", "could", "couldnt",
"cry", "de", "describe", "detail", "do", "done", "down", "due", "during", "each", "eg", "eight", "either", "eleven", "else",
"elsewhere", "empty", "enough", "etc", "even", "ever", "every", "everyone", "everything", "everywhere", "except", "few",
"fifteen", "fify", "fill", "find", "fire", "first", "five", "for", "former", "formerly", "forty", "found", "four", "from",
"front", "full", "further", "get", "give", "go", "had", "has", "hasnt",
"have", "he", "hence", "her", "here", "hereafter", "hereby", "herein", "hereupon", "hers", "herself",
"him", "himself", "his", "how", "however", "hundred", "ie", "if", "in", "inc", "indeed", "interest", "into",
"is", "it", "its", "itself", "keep", "last", "latter", "latterly", "least", "less", "ltd", "made", "many",
"may", "me", "meanwhile", "might", "mill", "mine", "more", "moreover", "most", "mostly", "move", "much", "must",
"my", "myself", "name", "namely", "neither", "never", "nevertheless", "next", "nine", "no", "nobody", "none",
"noone", "nor", "not", "nothing", "now", "nowhere", "of", "off", "often", "on", "once", "one", "only", "onto",
"or", "other", "others", "otherwise", "our", "ours", "ourselves", "out", "over", "own", "part", "per", "perhaps",
"please", "put", "rather", "re", "same", "see", "seem", "seemed", "seeming", "seems", "serious", "several", "she",
"should", "show", "side", "since", "sincere", "six", "sixty", "so", "some", "somehow", "someone", "something",
"sometime", "sometimes", "somewhere", "still", "such", "system", "take", "ten", "than", "that", "the", "their",
"them", "themselves", "then", "thence", "there", "thereafter", "thereby", "therefore", "therein", "thereupon",
"these", "they", "thickv", "thin", "third", "this", "those", "though", "three", "through", "throughout", "thru",
"thus", "to", "together", "too", "top", "toward", "towards", "twelve", "twenty", "two", "un", "under", "until",
"up", "upon", "us", "very", "via", "was", "we", "well", "were", "what", "whatever", "when", "whence", "whenever",
"where", "whereafter", "whereas", "whereby", "wherein", "whereupon", "wherever", "whether", "which", "while",
"whither", "who", "whoever", "whole", "whom", "whose", "why", "will", "with", "within", "without", "would", "yet",
"you", "your", "yours", "yourself", "yourselves", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "1.", "2.", "3.", "4.", "5.", "6.", "11",
"7.", "8.", "9.", "12", "13", "14", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z",
"terms", "CONDITIONS", "conditions", "values", "interested.", "care", "sure", ".", "!", "@", "#", "$", "%", "^", "&", "*", "(", ")", "{", "}", "[", "]", ":", ";", ",", "<", ".", ">", "/", "?", "_", "-", "+", "=",
"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",
"contact", "grounds", "buyers", "tried", "said,", "plan", "value", "principle.", "forces", "sent:", "is,", "was", "like",
"discussion", "tmus", "diffrent.", "layout", "area.", "thanks", "thankyou", "hello", "bye", "rise", "fell", "fall", "psqft.", "http://", "km", "miles"};
Scanner fip1 = new Scanner(new String("contains java"));
Map map = new TreeMap();
Integer ONE = new Integer(1);
while (fip1.hasNext()) {
int flag = 1;
String s1 = fip1.next();
s1 = s1.toLowerCase();
for (int i = 0; i < stopwords.length; i++) {
if (s1.equals(stopwords[i])) {
flag = 0;
}
}
if (flag != 0) {
if (s1.length() > 0) {
Integer frequency = (Integer) map.get(s1);
if (frequency == null) {
frequency = ONE;
} else {
int value = frequency.intValue();
frequency = new Integer(value + 1);
}
map.put(s1, frequency);
}
}
}
System.out.println(map);
}
}
答案 2 :(得分：1)
从while循环中删除 System.out.println(map); ，并在循环时将地图放在外面
答案 3 :(得分：0)
在while(fip1.hasNext)循环之外打印地图。
while(fip1.hasNext) {
....
map.put(s1, frequency);
}
}
}
System.out.println(map);