public static void main(String[] arg) throws Exception {
String string = "Now \u0690xxxxxxxx";
System.err.println(string);
byte[] bytes = string.getBytes(StandardCharsets.UTF_8);
System.err.println(new String(bytes));
System.err.println(bytes.length);
long calc = 0;
Utf8StringBuffer strbuf = new Utf8StringBuffer(bytes.length);
for (int i = 0; i < 10; i++) {
long s1 = System.currentTimeMillis();
for (int j = 1000000; j-- > 0; ) {
calc += new String(bytes, 0, bytes.length, StandardCharsets.UTF_8).hashCode();
}
long s2 = System.currentTimeMillis();
for (int j = 1000000; j-- > 0; ) {
calc += StringUtil.toUTF8String(bytes, 0, bytes.length).hashCode();
}
long s3 = System.currentTimeMillis();
for (int j = 1000000; j-- > 0; ) {
Utf8StringBuffer buffer = new Utf8StringBuffer(bytes.length);
buffer.append(bytes, 0, bytes.length);
calc += buffer.toString().hashCode();
}
long s4 = System.currentTimeMillis();
for (int j = 1000000; j-- > 0; ) {
strbuf.reset();
strbuf.append(bytes, 0, bytes.length);
calc += strbuf.toString().hashCode();
}
long s5 = System.currentTimeMillis();
System.err.println((s2 - s1) + ", " + (s3 - s2) + ", " + (s4 - s3) + ", " + (s5 - s4));
}
System.err.println(calc);
}
