com.alilitech.generate.utils.StyleConvertUtils Maven / Gradle / Ivy
/*
* Copyright 2017-2021 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.alilitech.generate.utils;
/**
* @author Zhou Xiaoxiang
* @since 1.0
*/
public class StyleConvertUtils {
private StyleConvertUtils() {
throw new IllegalStateException("StyleConvertUtils class");
}
/**
* 将下划线格式转换成大驼峰
*/
public static String getUpperCamelCaseStyle(String source) {
StringBuilder ret = new StringBuilder();
String[] arr = source.split("_");
for (String s : arr) {
ret.append(initUpper(s));
}
return ret.toString();
}
/**
* 将下划线格式转换成小驼峰
*/
public static String getLowerCamelCaseStyle(String source) {
StringBuilder ret = new StringBuilder();
String[] arr = source.split("_");
for(int i=0; i= '0' && ch[i] <= '9')
&& (i-1) > -1
&& ch[i-1] != '_') {
return false;
}
}
return true;
}
/**
* 功能：将输入字符串的首字母改成大写
* @param str
* @return
*/
public static String initUpper(String str) {
char[] ch = str.toCharArray();
if(ch[0] >= 'a' && ch[0] <= 'z'){
ch[0] = (char)(ch[0] - 32);
}
return new String(ch);
}
/**
* 功能：将输入字符串的首字母改成小写
* @param str
* @return
*/
public static String initLower(String str) {
char[] ch = str.toCharArray();
if(ch[0] >= 'A' && ch[0] <= 'Z'){
ch[0] = (char)(ch[0] + 32);
}
return new String(ch);
}
}