帮助理解的测试类

package test;

import java.util.StringTokenizer;
import java.io.File;
import java.io.OutputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class Test {
  public static String ss = "Title1=Java:this is the tile1 field;"+
                            "Title2=Java:this is the tile2 field;"+
                            "Title3=Java:this is the tile3 field;"+
                            "Title4=Java:this is the tile4 field;"+
                            "Title5=Java:this is the tile5 field;"
                            ;
  public Test() {
  }
  public static void main(String [] args) throws IOException {
    StringTokenizer st = new StringTokenizer(ss,"=;",false);

    //System.out.println("st.countTokens():"+st.countTokens());

    while(st.hasMoreTokens()){
      //System.out.println("st.countTokens():"+st.countTokens());
      String key = st.nextToken();
      String value = st.nextToken();
      //System.out.println("key = :" +key + "\n" + "value =:" + value);
    }

    String s = "abcde&fgh61=klklkl";
    System.out.println("s.indexOf(61):"+s.indexOf(61));
   
    File file;   
    file = File.createTempFile("policy","pdf");
    System.out.println(file.getName());
    System.out.println(file.getAbsolutePath()); 
    System.out.println(file.getAbsoluteFile()); 
    System.out.println(file.getCanonicalPath()); 
    System.out.println(file.toURL()); 
    System.out.println(file.toString());
   
    OutputStream out = new FileOutputStream(file);
   
 

  }
}