package cn.itcast.day08.demo02; /* String当中与转换相关的常用方法有: public char[] toCharArray():将当前字符串拆分成为字符数组作为返回值 public byte[] getBytes():获得当前字符串底层的字节数组 public String replace(CharSequence oldString,CharSequence newString); 将所有出现的老字符串替换成为新的字符串,返回替换之后的结果新字符串 备注:CharSequence意思就是说可以接收字符串类型 */ public class Demo04StringConvert { public static void main(String[] args) { //转换成为字符数组 char[] chars = "Hello".toCharArray(); System.out.println(chars[0]); System.out.println(chars.length); System.out.println("================"); //转换成为字节数组 byte[] bytes = "abc".getBytes(); for (int i = 0; i < bytes.length; i++) { System.out.println(bytes[i]); } System.out.println("================"); //字符串的内容替换 String str1 = "How do you do ?"; String str2 = str1.replace("o", "*"); System.out.println(str1); System.out.println(str2); System.out.println("================"); String lang1 = "会不会玩呀!你大爷的!你大爷的!你大爷的!"; String lang2 = lang1.replace("你大爷的", "****"); System.out.println(lang2); } }
【字符串的转换相关方法】
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