获取字符串长度:
String str1 = "hello yanjun";
// 获取的长度包括空格
System.out.println("\"" + str1 + "\"的长度为:" + str1.length());
时间大小比较:
private void TimeCompare(){
//格式化时间
SimpleDateFormat CurrentTime= new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
String date1="2015-01-25 09:12:09";
String date2="2015-01-29 09:12:11";
try {
Date beginTime=CurrentTime.parse(date1);
Date endTime=CurrentTime.parse(date2);
//判断是否大于两天
if(((endTime.getTime() - beginTime.getTime())/(24*60*60*1000))>=2) {
Log.v("hi","大于两天");
}else{
Log.v("hi","小于两天");
}
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}