How to convert integer value to minutes in java-CodePudding

I'm getting integer value from db as example integer value = 47. But when I pass that value to front end I need to convert it as minutes.

My scenario is I have 4 steps each step I'm getting an integer value, and after getting integer values I get the SUM of that 4 values. Then I have to convert that to minutes or hours.

Integer totalDuration = (engageDuration   evaluateDuration   explainDuration   extendDuration);

OutPut:-

"totalDuration": 47

I need to convert this output for minutes and send it back to the front-end.

CodePudding user response：

Does the integer represent days?

days to minutes

minutes = days * 24 *60

days to hours

minutes = days * 24

If the integer doesn't represent days, then please comment it.

CodePudding user response：

There's java.time.Duration and depending on the unit of your totalDuration, you could simply build up a Duration based on that value and then convert to minutes.

Let's assume totalDuration is a value of seconds. You could something like the following code:

public static void main(String[] args) {
    // example values
    int engageDuration = 1200;
    int evaluateDuration = 320;
    int explainDuration = 1200;
    int extendDuration = 100;
    // your summming operation
    int totalDuration = (engageDuration 
                          evaluateDuration 
                          explainDuration
                          extendDuration);
    // THE IMPORTANT PART: making it a Duration of seconds
    Duration duration = Duration.ofSeconds(totalDuration);
    // print the amount of seconds
    System.out.println("Total duration: "   totalDuration   "s");
    // print the amount of full minutes and remaining seconds
    System.out.println(String.format("Total duration: %d minutes %d seconds",
                                    duration.toMinutes(),
                                    duration.toSecondsPart()));
}

Output:

Total duration: 2820s
Total duration: 47 minutes 0 seconds

CodePudding user response：

According to your question, you need an Integer duration of an hour and minutes like 00:00

long miliSeconds=durection*60*100;
String formatDuration = DurationFormatUtils.formatDuration(miliSeconds, "HH:mm", true);

if you are using DurationFormatUtils then you need to add a dependency in pom.xml

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-lang3</artifactId>
    <version>3.0</version>
</dependency>

Below example of the main class:

    import org.apache.commons.lang3.time.DurationFormatUtils;
    
    public class DurationExample {
        public static void main(String[] args) {
            long duration=47*60*1000;
            String formatDuration = DurationFormatUtils.formatDuration(duration, "HH:mm", true);
            System.out.println(formatDuration);
        }
    }