在java中比较两次

Question

我需要比较我输入的两个时间字符串..我能够为日期做，但是时间我无法做到。请在下面找到我尝试的代码：

我的要求是..当我将Lower变量检查为"<<Current Time>>"时，我需要获取系统的当前时间并与Upper变量进行比较，该变量也有一个字符串时间..

    Date T1 = new Date();
    Date T2 = new Date();
    String temp_Time = "",Upper="";

    try{
        DateFormat df = new SimpleDateFormat(format);
        df.setLenient(false);
        System.out.println("Gng to Parse");
        String Lower = " <<Current Time>> ";
        if(Lower.equalsIgnoreCase(" <<Current Time>> ")){
            temp_Time = df.format(T1);
            System.out.println("Formatted : "+temp_Time);    
            **//Here I get the time in format i specified.**    
            T1 = df.parse(temp_Time); 
            // **when i parse, the time format changes and prints "Thu Jan 01 13:24:40 IST 1970"**
            System.out.println("T1 after parsed "+T1);
            T2 = df.parse(Upper);
        } else {
            T1 = df.parse(Lower);
            T2 = df.parse(Upper);                    
        }
        if (T1.after(T2) || T1.equals(T2)) {                    
            System.out.println("Time after || equal");                    
            System.out.println("Upper Time should be greater than Lower Date");    
        } else{
            System.out.println("Else of after ");
        }

    }catch(ParseException p) {
        System.out.println("Time Fields should be in mentioned format "+T1);
    }
 }