util.java

用java写的一个研究生班级通讯录程序,可从文件导入及导出,界面美观.

package com.bemjh.util;
import com.bemjh.Shape.CarShape;
import com.bemjh.Shape.ShapeIcon;
import javax.swing.JOptionPane;
import javax.swing.Icon;
import java.util.Vector;

/**
 * Created by IntelliJ IDEA.
 * User: ma
 * Date: 2006-11-24
 * Time: 21:41:44
 * To change this template use File | Settings | File Templates.
 */
public class Util {
    public static void showMessageDialog(String title,String content, Icon icon){
        JOptionPane.showMessageDialog(null,content,title,0,icon);
    }

  /**
   * This method will read lines from a CSV file,
   * line by line. Each time that this method is
   * called an array of strings is returned that
   * contains all of the fields read from that
   * line.
   *
   * @param r A BufferedReader to read the CSV from,
   * line by line.
   * @return An array of fields read from one line
   * of the CSV file.
   */
  public static String[] parseCSVLine(String str)
  {
    String rtn;
    boolean quote = false;
    int i;
    Vector vec = new Vector();

    // if its null we have reached the end
    if ( str==null )
      return null;

    // now loop through this line
    rtn = "";
    for ( i=0;i<str.length();i++ ) {
      if ( str.charAt(i)=='\"' ) {
        // found a ", check to see if
        // there is a second one
        if ( (i+1)<str.length()&&
             (str.charAt(i+1)=='\"') ) {
          // found a "" so just insert a single "
          rtn+="\"";
          i++;
          continue;
        }
        // toggle quote mode
        quote=!quote;
      } else if ( (str.charAt(i)==',') &&
                  (!quote) ) {
        // found a comma and we're not in quote mode
        vec.addElement(rtn);
        rtn = "";
      } else {
        // append character
        rtn+=str.charAt(i);
      }

    }

    // add in the last element, if present
    if ( rtn.length()>0 )
      vec.addElement(rtn);
    // create an array
    String arr[] = new String[vec.size()];
    vec.copyInto(arr);
    return arr;
  }
}