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--- java:java [2022/07/26 08:21] – [Thread pools] admin
+++ java:java [2024/05/31 05:22] (current) – [Random in Java] admin
@@ Line 401: / Line 401: @@
 // so add 1 to make it inclusive
 ThreadLocalRandom.current().nextInt(min, max + 1);
+</code>
+==== Md5 ====
+<code java>
+import java.util.HashMap;
+import java.security.MessageDigest;
+public static String md5(String original) {
+    try{
+        MessageDigest md = MessageDigest.getInstance("MD5");
+        md.update(original.getBytes());
+        byte[] digest = md.digest();
+        StringBuffer sb = new StringBuffer();
+        for (byte b : digest) {
+            sb.append(String.format("%02x", b & 0xff));
+        }
+        return sb.toString();
+    }catch(Exception e){
+        return "";
+    }
+}
 </code>
 ==== Java Reflection ====