Java 将秒转换为小时、分钟和秒？
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converting seconds to hours,minutes, and seconds?
提问by user3788063
so Im trying to make a program that can convert s from input into h, m and s. my code so far looks like this:
所以我试图制作一个可以将 s 从输入转换为 h、m 和 s 的程序。到目前为止，我的代码如下所示：
import java.util.Scanner;
class q2_5{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int s=0;//seconds
int m=0;//minutes
int h=0;//hour
System.out.println("how many seconds?");
s=input.nextInt();
if(s >= 60){
m=s/60;
} if(m>=60){
h=m/60;
}
System.out.println(s + "s = " + h + " h " + m + " m " + s + "s ");
}
}
ok so I had to initialize s,m,h to 0 cuz if not I was getting problems in the if statement, so I just put it to 0, since I can change it later :) ok. so the problem with this program right now is that if I type in 3603 I get this output: 3603s = 1 h 60 m 3603s, if I type in 3600 I get this: 3600s = 1 h 60 m 3600s, but the output should have been 3603s = 1h 0m 3s and 3600s = 1h 0m 0s respectively. any tips/advice/solutions on how to solve this problem? :D thanks in advance!
好的，所以我必须将 s,m,h 初始化为 0 因为如果不是我在 if 语句中遇到问题，所以我只是将它设置为 0，因为我以后可以更改它:) 好的。所以这个程序现在的问题是，如果我输入 3603 我得到这个输出：3603s = 1 h 60 m 3603s，如果我输入 3600 我得到这个：3600s = 1 h 60 m 3600s，但输出应该有分别为 3603s = 1h 0m 3s 和 3600s = 1h 0m 0s。关于如何解决这个问题的任何提示/建议/解决方案？:D 提前致谢！
采纳答案by drum
You never changed the value of s. A quick work around would be s = s - (h*3600 + m*60)
您从未更改 的值s。一个快速的解决方法是s = s - (h*3600 + m*60)
EDIT: t = s - (h*3600 + m*60)
编辑： t = s - (h*3600 + m*60)
回答by Kyranstar
Try subtracting from the first term every time you set a lower term.
每次设置较低的项时，请尝试从第一项中减去。
class Test{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int s=0;//seconds
int m=0;//minutes
int h=0;//hour
System.out.println("how many seconds?");
s=input.nextInt();
if(s >= 60){
m=s/60;
s = s- m*60;
} if(m>=60){
h=m/60;
m = m - h*60;
}
System.out.println(s + "s = " + h + " h " + m + " m " + s + "s ");
}
}
Just by the way, too, remember to close your inputscanner! Like so : input.close()near the end of the program.
顺便说一句，也请记住关闭您的input扫描仪！像这样：input.close()接近程序的结尾。
回答by jcaron
You can do it all in a single line:
您可以在一行中完成所有操作：
System.out.println((s/3600) + ' hours ' + ((s/60)%60) + ' minutes ' + (s%60) + ' seconds');
回答by Yagel
use this code:
使用此代码：
import java.util.Scanner;
class q2_5{
public static void main(String args[]){
Scanner input = new Scanner(System.in);
int s=0;//seconds
int m=0;//minutes
int h=0;//hour
int s_input=0;
System.out.println("how many seconds?");
s_input=input.nextInt();
s=s_input%60;
if(s >= 60){
m=s_input/60;
}if(m>=60){
h=m/60;
m=m%60;
}
System.out.println(s + "s = " + h + " h " + m + " m " + s + "s ");
}
}
回答by High Zedd
You should try this
你应该试试这个
import java.util.Scanner;
public class Time_converter {
public static void main(String[] args)
{
Scanner input = new Scanner (System.in);
int seconds;
int minutes ;
int hours;
System.out.print("Enter the number of seconds : ");
seconds = input.nextInt();
hours = seconds / 3600;
minutes = (seconds%3600)/60;
int seconds_output = (seconds% 3600)%60;
System.out.println("The time entered in hours,minutes and seconds is:");
System.out.println(hours + " hours :" + minutes + " minutes:" + seconds_output +" seconds");
}
}
回答by Shohan Ahmed Sijan
My solution is:
我的解决办法是：
String secToTime(int sec) {
int second = sec % 60;
int minute = sec / 60;
if (minute >= 60) {
int hour = minute / 60;
minute %= 60;
return hour + ":" + (minute < 10 ? "0" + minute : minute) + ":" + (second < 10 ? "0" + second : second);
}
return minute + ":" + (second < 10 ? "0" + second : second);
}
回答by Felipe Martins Melo
Java 8 brings a great API for date and time manipulation.
Java 8 为日期和时间操作带来了很棒的 API。
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
public class Converter {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("HH:mm:ss");
public String convert(int seconds) {
LocalTime time = LocalTime.MIN.plusSeconds(seconds).toLocalTime();
return formatter.format(time);
}
}
Basically, this code adds the number of number of seconds to the minimum datetime supported, which, naturally, has HH:mm:ss equals to 00:00:00.
基本上，此代码将秒数添加到支持的最小日期时间，自然地，HH:mm:ss 等于 00:00:00。
As your are interested in the time only, you extract it by calling toLocalTime()and format it as wanted.
由于您只对时间感兴趣，因此您可以通过调用toLocalTime() 来提取它并根据需要对其进行格式化。
回答by Basil Bourque
Obviously you are doing some homework/practice to learn Java. But FYI, in real work you needn't do those calculations and manipulations. There's a class for that.
显然，您正在做一些功课/练习来学习 Java。但是仅供参考，在实际工作中，您不需要进行这些计算和操作。有一个课程。
java.time.Duration
java.time.Duration
For a span of time, use the Durationclass. No need for you to do the math.
在一段时间内，使用Duration该类。您无需进行数学运算。
Duration d = Duration.ofSeconds( s );
The standard ISO 8601format for a string representing a span of time unattached to the timeline is close to your desired output: PnYnMnDTnHnMnSwhere the P marks the beginning and the T separates any years-months-days from any hours-minutes-seconds. So an hour and a half is PT1H30M.
代表未附加到时间线的时间跨度的字符串的标准ISO 8601格式接近您想要的输出：PnYnMnDTnHnMnS其中 P 标记开始，T 将任何年-月-日与任何时-分-秒分开。所以一个半小时是PT1H30M。
The java.time classes use the ISO 8601 formats by default when parsing or generating strings.
java.time 类在解析或生成字符串时默认使用 ISO 8601 格式。
String output = d.toString() ;
In Java 9 and later, you can call the to…Partmethods to retrieve the individual parts of hours, minutes, and seconds.
在 Java 9 和更高版本中，您可以调用这些to…Part方法来检索小时、分钟和秒的各个部分。
回答by Kandarp
import java.util.Scanner;
public class Prg2 {
public static void main(String[] args) {
int seconds = 0;
int hours = 0;
int minutes = 0;
int secondsDisp = 0;
Scanner in = new Scanner(System.in);
System.out.println("Enter the number of seconds: ");
seconds = in.nextInt();
hours = seconds/3600;
minutes = (seconds - (hours*3600))/60;
secondsDisp = ((seconds - (hours*3600)) - (minutes * 60));
System.out.println(seconds + " seconds equals " + hours + " hours, " + minutes + " minutes and " + secondsDisp + " seconds");
}
}
回答by Durgesh Pal
class time{
public static void main (String args[]){
int duration=1500;
String testDuration = "";
if(duration < 60){
testDuration = duration + " minutes";
}
else{
if((duration / 60)<24)
{
if((duration%60)==0){
testDuration = (duration / 60) + " hours";
}
else{
testDuration = (duration / 60) + " hours," + (duration%60) + " minutes";
}
}
else{
if((duration%60)==0){
if(((duration/60)%24)==0){
testDuration = ((duration / 24)/60) + " days,";
}
else{
testDuration = ((duration / 24)/60) + " days," + (duration/60)%24 +"hours";
}
}
else{
testDuration = ((duration / 24)/60) + " days," + (duration/60)%24 +"hours"+ (duration%60) + " minutes";
}
}
}
System.out.println(testDuration);
}
}
