43 lines
877 B
Java
43 lines
877 B
Java
package com.songoda.epicheads.util;
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import java.text.DecimalFormat;
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public class Clock {
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private static final DecimalFormat millisecondsFormat = new DecimalFormat("#.##");
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private final long start;
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private long end;
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public Clock() {
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this.start = System.nanoTime();
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this.end = -1;
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}
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public boolean hasEnded() {
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return end >= 0;
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}
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public String stop() {
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Checks.ensureTrue(!hasEnded(), "Timer has already been stopped.");
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this.end = System.nanoTime();
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return toString();
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}
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public double getDuration() {
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return (hasEnded() ? end - start : System.nanoTime() - start) / 1e6;
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}
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@Override
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public String toString() {
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return "(" + millisecondsFormat.format(getDuration()) + " ms)";
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}
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public static Clock start() {
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return new Clock();
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}
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}
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