2.public byte[] getBytes():获得当前字符串底层的字节数组。 3.public String replace(CharSequence oldString,CharSeguence newString):将老字符串,返回替换之后的新字符串。(注意:CharSequence意思是说可以接收字符串类型) 代码如下: public class StringConvert {public static void main(String[] args) {//转...
CharSequenceis an interface implemented by several classes such asString,StringBuilder, and StringBuffer. So, converting aCharSequenceto aStringis not always as straightforward as it may seem. In short, there are three common approaches to convert from a CharSequenceto aStringobject. We can usety...
char oldChar, char newChar):返回一个新的字符串,它是通过用 newChar 替换此字符串中出现的所有 oldChar 得到的。 String replaceCharSequence target, CharSequence replacement):使用指定的字面值替换序列替换此字符串所有匹配字面值目标序列的子字符串。 String replaceAllString regex, String replacement) : 使用...
*/ public class ValueOfDemo { public static void main(String[] args) { // this program requires two // arguments on the command line if (args.length == 2) { // convert strings to numbers float a = (Float.valueOf(args[0])).floatValue(); float b = (Float.valueOf(args[1]))....
例如:String s="Hello".replace('l','w'); 第二种形式是用一个字符序列替换另一个字符序列,形式如下: String replace(CharSequence original,CharSequence replacement) 15、trim() 去掉起始和结尾的空格 16、valueOf() 转换为字符串 17、toLowerCase() 转换为小写 ...
例如:HELLO_WORLD->HelloWorld * * @param name 转换前的下划线大写方式命名的字符串 * @return 转换后的驼峰式命名的字符串 */ public static String convertToCamelCase(String name) { StringBuilder result = new StringBuilder(); // 快速检查 if (name == null || name.isEmpty()) { // 没必要转换...
* Lower case character converts to Upper case * * * For a word based algorithm, see {@link org.apache.commons.lang3.text.WordUtils#swapCase(String)}. * A {@code null} input String returns {@code null}. * * * StringUtils.swapCase(...
String[]args){Stringstr="1254";intnumber=7895;// convert string to int using Integer.parseInt(...
String to lower case using the rules of the default locale. StringtoLowerCase(Locale locale) Converts all of the characters in this String to lower case using the rules of the given Locale. StringtoString() This object (which is already a string!) is itself returned. ...
String(byte[] bytes, Charset charset) Constructs a new String by decoding the specified array of bytes using the specified charset. String(char[] value) Allocates a new String so that it represents the sequence of characters currently contained in the character array argument. String...