Java中有秒表吗?
2022-08-31 08:25:44
Java中有秒表吗?
在Google上,我只找到了不起作用的秒表代码 - 它们总是返回0毫秒。
我发现的这个代码不起作用,我不明白为什么。
public class StopWatch {
private long startTime = 0;
private long stopTime = 0;
private boolean running = false;
public void start() {
this.startTime = System.currentTimeMillis();
this.running = true;
}
public void stop() {
this.stopTime = System.currentTimeMillis();
this.running = false;
}
//elaspsed time in milliseconds
public long getElapsedTime() {
long elapsed;
if (running) {
elapsed = (System.currentTimeMillis() - startTime);
} else {
elapsed = (stopTime - startTime);
}
return elapsed;
}
//elaspsed time in seconds
public long getElapsedTimeSecs() {
long elapsed;
if (running) {
elapsed = ((System.currentTimeMillis() - startTime) / 1000);
} else {
elapsed = ((stopTime - startTime) / 1000);
}
return elapsed;
}
}