Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *
 * Copyright SHMsoft, Inc. 
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.HashMap;
import java.util.Map;

public class Main {
    public static double compareText(String text, String source) {
        Map<String, Integer> sourceMap = parseTextToWords(source);
        Map<String, Integer> textMap = parseTextToWords(text);

        int total = 0;
        int notFound = 0;
        for (Map.Entry<String, Integer> textEntry : textMap.entrySet()) {
            String word = textEntry.getKey();
            int count = textEntry.getValue();

            Integer sourceCount = sourceMap.get(word);
            int sCount = sourceCount != null ? sourceCount.intValue() : 0;

            total += count;
            notFound += (count > sCount) ? count - sCount : 0;
        }

        return (double) (total - notFound) / (double) total;
    }

    private static Map<String, Integer> parseTextToWords(String source) {
        Map<String, Integer> words = new HashMap<String, Integer>();
        String[] sourceLines = source.split("\n");
        for (String souceLine : sourceLines) {
            String[] sourcePhrases = souceLine.split(" ");

            for (String sourcePhrase : sourcePhrases) {
                String[] sourceWords = sourcePhrase.split(",");

                for (String sourceWord : sourceWords) {
                    sourceWord = sourceWord.trim();

                    Integer value = words.get(sourceWord);
                    if (value == null) {
                        value = 0;
                    }
                    ++value;
                    words.put(sourceWord, value);
                }
            }
        }

        return words;
    }
}