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Java8 to Java17

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By your_full_name
1 min read
Java8 to Java17

A categorized list of all Java and JVM features since JDK 8 to 21

Record Classes, terse syntax to define immutable DTOs.

jdk16

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5

record Point(int x, int y) { }

var point = new Point(1, 2);
point.x(); // returns 1
point.y(); // returns 2
Pattern Matching for instanceof to eliminate the need for explicit casts after a type check.

jdk16

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if (obj instanceof String s && s.length() > 5) {
  System.out.println(s);
}
Text Blocks

jdk15

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String html = """   
               <html>
                 <body>
                 </body>
               </html>
              """;

Switch Expressions

jdk14

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8

int numLetters = switch(day) {
  case MONDAY -> 6;
  default -> {
    String s = day.toString();
    int result = s.length();
    yield result;
  }
}

#####

programming
java
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