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conanak99/example.java Secret

Created February 23, 2016 20:30
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example.java
int total = 50000;
String s = "";
for (int i = 0; i < total; i++) { s += String.valueOf(i); }
// 4828ms
StringBuilder sb = new StringBuilder();
for (int i = 0; i < total; i++) { sb.append(String.valueOf(i)); }
// 4ms
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