This topic is about Java 13 – Text Blocks.
Java 13 introduces text blocks to handle multiline strings like JSON/XML/HTML etc. It is a preview feature.
- Text Block allows to write multiline strings easily without using \r\n.
- Text Block string have same methods as string like contains(), indexOf() and length() functions.
Example
Consider the following example −
ApiTester.java
public class APITester {
public static void main(String[] args) {
String stringJSON = "{\r\n"
+ "\"Name\" : \"Mahesh\",\r\n"
+ "\"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());
}
}
Compile and Run the program
$javac -Xlint: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
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