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| class Solution2 { public String replaceSpace(String s) { char[] array = new char[s.length() * 3]; int size = 0; for (int i = 0; i < s.length() ; i++) { char a = s.charAt(i); if (a == ' ') { array[size++] = '%'; array[size++] = '2'; array[size++] = '0'; }else array[size++] = a; } String string = new String(array, 0, size);
return string; } }
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