本文共 1989 字，大约阅读时间需要 6 分钟。

import java.util.ArrayList;import java.util.Arrays;import java.io.BufferedReader;import java.io.File;import java.io.FileNotFoundException;import java.io.FileReader;import java.io.IOException;public class BUC {       private String [][] dataSet;    private ArrayList
   
      dimension;    private ArrayList
    
      inputList;    private ArrayList
     
       removeList;    private Integer minSup;    public BUC(int rank, int col,Integer minSup, String filename) {           this.dataSet = new String[rank][col];        this.dimension = new ArrayList
      
       ();        this.minSup = minSup;        this.inputList = new ArrayList
       
        ();        this.removeList = new ArrayList
        
         (); this.readFile(filename); this.getDimension(); this.getOutput(0); } //读取csv数据到dataSet里面 public void readFile(String filename){ File inFile = new File(filename); // 读取的CSV文件 String inString = ""; try { BufferedReader reader = new BufferedReader(new FileReader(inFile)); inString = reader.readLine(); String [] tempRank = null; for(int i=0;inString!=null;i++){ tempRank = inString.split(","); for(int j=0;j
         
           getDimension(ArrayList
          
            a){ for(int i=0;i
           
             getDimension(ArrayList
            
              a,Integer k){ if(k>this.dataSet[0].length){ return null; }else { for(int i=0;i
             
               endSet = new ArrayList
              
               (); for(int i=0;i
               
                 t){ boolean flag = true; for(int i=0;i
                
                  tempSet = new ArrayList
                 
                  (); this.getDimension(tempSet); Integer [] SetCount = new Integer[tempSet.size()]; for(int i=0;i
                  
                   =this.minSup){ this.inputList.add(tempSet.get(i)+"<"+SetCount[i]+">"); }else { this.removeList.add(tempSet.get(i)); } } }else { ArrayList
                   
                     tempSet = new ArrayList
                    
                     (); tempSet = this.getDimension(tempSet,dim); this.removeList = new ArrayList
                     
                      (); Integer [] SetCount = new Integer[tempSet.size()]; for(int i=0;i
                      
                       =this.minSup){ this.inputList.add(tempSet.get(i)+"<"+SetCount[i]+">"); }else { this.removeList.add(tempSet.get(i)); } } System.out.println("输出结果为:"+this.inputList.toString()); } } //工作函数 public void getOutput(int dim){ if(dim