java里面String字符串和其他类型转换

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1 byte数组和String字符串

1-1 string 转 byte[]

String str = "Hello";byte[] srtbyte = str.getBytes();

1-2 byte[] 转 string

byte[] srtbyte;String res = new String(srtbyte);System.out.println(res);

1-3 设定编码方式相互转换

String str = "hello";byte[] srtbyte = null;try {    srtbyte = str.getBytes("UTF-8");    String res = new String(srtbyte,"UTF-8");    System.out.println(res);} catch (UnsupportedEncodingException e) {    // TODO Auto-generated catch block    e.printStackTrace();}