public static void main(String args[]) { int count = 1000000; long start = System.currentTimeMillis(); ArrayList<TestArrayList> test = new ArrayList<TestArrayList>(); for (int i = 0; i < count; i++) { TestArrayList ts = new TestArrayList(); test.add(ts); } long end = System.currentTimeMillis(); System.out.println(end - start); long start2 = System.currentTimeMillis(); ArrayList<TestArrayList> test2 = new ArrayList<TestArrayList>(count); for (int i = 0; i < count; i++) { TestArrayList ts2 = new TestArrayList(); test2.add(ts2); } long end2 = System.currentTimeMillis(); System.out.println(end2 - start2); }
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转载自edison-cool911.iteye.com/blog/1866226
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