java字串下劃線轉駝峰工具使用
阿新 • • 發佈:2018-11-10
java字串下劃線轉駝峰工具使用
public class StringUtil { private static final char UNDERLINE='_'; /** * 下劃線 轉 駝峰 * @param param * @return */ public static String underlineToCamel(String param){ if (param==null||"".equals(param.trim())){ return ""; } int len=param.length(); StringBuilder sb=new StringBuilder(len); for (int i = 0; i < len; i++) { char c = Character.toLowerCase(param.charAt(i)); if (c == UNDERLINE){ if (++i<len){ sb.append(Character.toUpperCase(param.charAt(i))); } }else{ sb.append(c); } } return sb.toString(); } }