我正在尝试测量执行时间,但我不知道在哪里,但该方法是在 try block 之前还是内部?
ublic static void main(String[] args) {
long startTime = System.currentTimeMillis();
try {
SearchDetailsDialog dialog = new SearchDetailsDialog(null);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}long endTime = System.currentTimeMillis();
long totalTime = ((endTime - startTime)/1000);
System.out.println("the execution time is:");
System.out.println(totalTime);
}
最佳答案
都不是。根据您的情况,最好的是:
long startTime= System.nanoTime() ;
try {
SearchDetailsDialog dialog = new SearchDetailsDialog(null);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
} finally {
long endTime= System.nanoTime() ;
double totalTime= ((double)(endTime - startTime)/1000000000) ;
System.out.printf("the execution time is: %.3f seconds",totalTime);
}
关于java - 如何将执行时间方法与 try 和 catch 一起使用,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/18413315/