TimeElapsedUtil.java

TimeElapsedUtil.java

package sample;

import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.TimeZone;

public class TimeElapsedUtil {


    public long startTime;
    public long now;

    public void setStartTime(long startTime) {
        this.startTime = startTime;
    }

    public TimeElapsedUtil() {
        this.startTime = System.currentTimeMillis();
        this.now = System.currentTimeMillis();
    }

    public TimeElapsedUtil(long startTime) {
        this.startTime = startTime;
        this.now = System.currentTimeMillis();
    }

    public TimeElapsedUtil(long startTime, long now) {
        this.startTime = startTime;
        this.now = now;
    }

    public String getElapsed() {
        this.now = System.currentTimeMillis();
        return convertLongToHRString(this.now - this.startTime);
    }

    private String convertLongToHRString(long val) {
        Date date = new Date(val);
        DateFormat formatter = new SimpleDateFormat("HH:mm:ss.SSS");
        formatter.setTimeZone(TimeZone.getTimeZone("UTC"));
        return formatter.format(date);
    }
}