个人项目：Java实现论文查重

 public static float getSimilarity(int[] number1,int[] number2){
        float square1=0,square2=0,product=0;
        for(int i=0;i<number1.length;i++){
            //两个向量的点乘
            product+=number1[i]*number2[i];
            //分别计算两个向量的平方和
            square1 += (float) Math.pow(number1[i], 2);
            square2 += (float) Math.pow(number2[i], 2);
        }
        //返回两个向量的余弦值
        return (float) (product / (Math.sqrt(square1) * Math.sqrt(square2)));
    }

package test;

import com.Words.txtOperation;
import org.junit.Test;

import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.List;

import static org.junit.Assert.*;

public class txtOperationTest extends txtOperation {

    @Test
    public void read() throws IOException {
        //正常读取
        List<String> t1=Read("F:\\program\\c\\software\\txt\\1.txt");
        System.out.println(t1);
        //读取不存在的文件
        List<String> t2=Read("F:\\program\\c\\software\\txt\\111.txt");
        //读取错误格式的文件
        List<String> t3=Read("F:\\program\\c\\software\\txt\\");
    }

    @Test
    public void write() throws IOException {
        Write("F:\\program\\c\\software\\txt\\3.txt",(float)1.11);
    }

    @Test
    public void counter() {
        List<String> t1=new ArrayList<>();
        t1.add("aa");    t1.add("aa");    t1.add("ab");    t1.add("bb");
        List<String> t2=new ArrayList<>();
        t2.add("aa");    t1.add("a");    t1.add("ab");    t1.add("bb");
        int[] a=Counter(t1,t2);
        System.out.println(Arrays.toString(a));
    }
}

package test;

import com.Words.WordsCut;
import org.junit.Test;

import java.util.ArrayList;
import java.util.List;

import static org.junit.Assert.*;

public class WordsCutTest extends WordsCut {

    @Test
    public void testSplitWords() {
        String t="这是一个用于测试中文分词函数的语句。";
        System.out.println(splitWords(t));
        t="This is a test aim to test the SplitWords Function of English.";
        System.out.println(splitWords(t));
    }

    @Test
    public void testmerge() {
        String t1="这是第一个字符串";
        List<String>s1=splitWords(t1);
        String t2="This is the second string";
        List<String>s2=splitWords(t2);
        System.out.println(Merge(s1,s2));
    }
}

package test;

import com.Words.CosineSimilarity;
import org.junit.Test;

import static org.junit.Assert.*;

public class CosineSimilarityTest extends CosineSimilarity {

    @Test
    public void testGetSimilarity() {
        //计算余弦值并返回
        int t1[]={1,0};
        int t2[]={1,0};
        System.out.println(getSimilarity(t1,t2));
        int t3[]={1,0};
        int t4[]={0,1};
        System.out.println(getSimilarity(t3,t4));
        int t5[]={1,1};
        int t6[]={2,3};
        System.out.println(getSimilarity(t5,t6));
        int t7[]={1,5,5};
        int t8[]={1,6,2};
        System.out.println(getSimilarity(t7,t8));
        int t9[]={7,2,8,9};
        int t0[]={1,0,5,6};
        System.out.println(getSimilarity(t9,t0));
    }
}

 try {
            //打开path路径的文件
            File read = new File(path);
            InputStreamReader reader = new InputStreamReader(new FileInputStream(read));
            BufferedReader r = new BufferedReader(reader);
            String line = r.readLine();
            //循环读取每一行的文字并加入到表中
            while (line != null) {
                article.add(line);
                line = r.readLine();
            }
        } catch (IOException e) {
            System.out.println("文件打开失败，请检查文件路径是否正确");
        }