Hutool string utility class

// String utility class 
	@Test
	public  void  test13(){
    
		// Judge empty , An empty string , And spaces  isempty Can't judge spaces 
		String a=" ";
		if(StrUtil.isBlank(a)){
    
			System.out.println("dddd");
		}
		// Remove suffix 
		String b="j.a.txt";
		Console.log(StrUtil.removeSuffix(b,".txt"));// j.a
		Console.log(StrUtil.removePrefix(b,"j."));// a.txt
		//  Intercepting string 
		String str = "abcdefgh";
		String strSub1 = StrUtil.sub(str, 2, 3); //strSub1 -> c
		String strSub2 = StrUtil.sub(str, 2, -3); //strSub2 -> cde
		String strSub3 = StrUtil.sub(str, 3, 2); //strSub2 -> c
		//format Method   Awesome stitching 
		String template = "{}love{}";
		Console.log(StrUtil.format(template, " I ", " you ")); //str ->  I love you! , Just like mice Love Rice 
		//HexUtil That is, string or byte An array with the 16 Hexadecimal represents the tool class of conversion 
		String strs = " I'm a string ";
		String hex = HexUtil.encodeHexStr(strs, CharsetUtil.CHARSET_UTF_8);
		//hex yes ：
		//e68891e698afe4b880e4b8aae5ad97e7aca6e4b8b2
		String decodedStr = HexUtil.decodeHexStr(hex);
		// Decode and str identical 
	}