Java 14 文本块

Java 13引入了文本块，用于处理多行字符串，如JSON/XML/HTML等，这是一个预览功能。通过Java 14，我们有了第二个文本块的预览版本。现在，文本块具有以下改进：

示例

考虑以下示例 –

ApiTester.java

public class APITester {   public static void main(String[] args) {      String stringJSON = "{\r\n"          + "\"Name\" : \"Mahesh\","          + "\"RollNO\" : \"32\"\r\n"          + "}";        System.out.println(stringJSON);      String textBlockJSON = """ {"name" : "Mahesh", \ "RollNO" : "32" } """;      System.out.println(textBlockJSON);       System.out.println("Contains: " + textBlockJSON.contains("Mahesh"));       System.out.println("indexOf: " + textBlockJSON.indexOf("Mahesh"));       System.out.println("Length: " + textBlockJSON.length());   } }

编译和运行程序

$javac -Xlint:preview --enable-preview -source 14 APITester.java$java --enable-preview APITester

输出

{"Name" : "Mahesh","RollNO" : "32"}{   "name" : "Mahesh",   "RollNO" : "32"}Contains: trueindexOf: 15Length: 45