格式化字段

时间：2014-05-09 00:05:49 收藏：0 阅读：532
package 
FormatData;
 
import java.text.DateFormat;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
 
import com.sun.org.apache.xerces.internal.impl.xpath.regex.ParseException;
 
public class FormatData {
    private 
static final Pattern intPattern = Pattern.compile("\\d+(\\.\\d{0,2})?");
 
    //1. 字符串转化为数字
    public 
static float getFloatValue(String value) {
        Matcher matcher = intPattern.matcher(value);
        if 
(matcher.find()) {
            return 
Float.valueOf(matcher.group());
        }
        return 
0.0f;
    }
     
    //2. 比较日期
    public 
static boolean isDateBefore(String date1, String date2)
            throws 
java.text.ParseException {
        try 
{
            DateFormat df = DateFormat.getDateTimeInstance();
            boolean 
result = df.parse(date1).before(df.parse(date2));
            return 
result;
        } catch 
(ParseException e) {
            System.out.println(e.getMessage());
            return 
false;
        }
    }
}
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