[{"language":"Java","code":"public int addDigits(int num) {\n\tint sum = 0;\n\n\tString s = String.valueOf(num);\n\n\tfor (int i = 0; i < s.length(); i++) {\n\t\tsum = sum + (s.charAt(i) - '0');\n\t}\n\n\tif (sum < 10) {\n\t\treturn sum;\n\t} else {\n\t\treturn addDigits(sum);\n\t}\n}","lang":"java","html":"<pre class=\"shiki shiki-themes github-light github-dark\" style=\"background-color:#fff;--shiki-dark-bg:#24292e;color:#24292e;--shiki-dark:#e1e4e8\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">public</span><span style=\"color:#D73A49;--shiki-dark:#F97583\"> int</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\"> addDigits</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> num) {</span></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">\tint</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> sum </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> 0</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">;</span></span>\n<span class=\"line\"></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">\tString s </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> String.</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">valueOf</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(num);</span></span>\n<span class=\"line\"></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">\tfor</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> (</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">int</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> i </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\"> 0</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">; i </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">&#x3C;</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> s.</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">length</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(); i</span><span style=\"color:#D73A49;--shiki-dark:#F97583\">++</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">) {</span></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">\t\tsum </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">=</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> sum </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">+</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> (s.</span><span style=\"color:#6F42C1;--shiki-dark:#B392F0\">charAt</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">(i) </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">-</span><span style=\"color:#032F62;--shiki-dark:#9ECBFF\"> '0'</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">);</span></span>\n<span class=\"line\"><span style=\"color:#24292E;--shiki-dark:#E1E4E8\">\t}</span></span>\n<span class=\"line\"></span>\n<span class=\"line\"><span style=\"color:#D73A49;--shiki-dark:#F97583\">\tif</span><span style=\"color:#24292E;--shiki-dark:#E1E4E8\"> (sum </span><span style=\"color:#D73A49;--shiki-dark:#F97583\">&#x3C;</span><span style=\"color:#005CC5;--shiki-dark:#79B8FF\
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