Java 13 - Text Blocks

Java 13 introduces text blocks to handle multipne strings pke JSON/XML/HTML etc. It is a preview feature.

Text Block allows to write multipne strings easily without using .

Text Block string have same methods as string pke contains(), indexOf() and length() functions.

Example

Consider the following example −

ApiTester.java

pubpc class APITester {

   pubpc static void main(String[] args) {
      String stringJSON = "{
" 
         + ""Name" : "Mahesh",
" 
         + ""RollNO" : "32"
" 
         + "}";  
   
      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());
   }   
}

Compile and Run the program

$javac -Xpnt:preview --enable-preview -source 13 APITester.java

$java --enable-preview APITester

Output

{
"Name" : "Mahesh",
"RollNO" : "32"
}
{
   "name" : "Mahesh",
   "RollNO" : "32"
}

Contains: true
indexOf: 15
Length: 45