Java22.java

Java22.java

// Java 22
// OpenJDK 22
// % export PATH="/Users/rajaniapple/Downloads/Software/OpenJDK/JDK22/jdk-22.jdk/Contents/Home/bin/":$PATH

// % java --enable-preview --source 22 --enable-native-access=ALL-UNNAMED --add-modules=jdk.incubator.vector Java22.java
// Or
// % javac -Xlint:preview --enable-preview --source 22 --add-modules=jdk.incubator.vector Java22.java
// % java --enable-preview --enable-native-access=ALL-UNNAMED --add-modules=jdk.incubator.vector Java22

// Java 21
// OpenJDK 21
// % export PATH="/Users/rajaniapple/Downloads/Software/OpenJDK/JDK21/jdk-21.jdk/Contents/Home/bin/":$PATH


/*
# 1 # 423: Region Pinning for G1
# 2 # 447: Statements before super(...) (Preview)
# 3 # 454: Foreign Function & Memory API
# 4 # 456: Unnamed Variables & Patterns
# 5 # 457: Class-File API (Preview)
# 6 # 458: Launch Multi-File Source-Code Programs
# 7 # 459: String Templates (Second Preview)
# 8 # 460: Vector API (Seventh Incubator)
# 9 # 461: Stream Gatherers (Preview)
# 10 # 462: Structured Concurrency (Second Preview)
# 11 # 463: Implicitly Declared Classes and Instance Main Methods (Second Preview)
# 12 # 464: Scoped Values (Second Preview)
*/


// import static java.lang.System.out;
// import java.lang.System;

class Java22 {
    public static void main(String[] args) { 
    // public static void main(String... args) { 
        var propertiesSystem = new SystemProperties();
        propertiesSystem.print();

    // # 1 # 423: Region Pinning for G1

    // # 2 # 447: Statements before super(...) (Preview)

    // # 3 # 454: Foreign Function & Memory API

    // # 4 # 456: Unnamed Variables & Patterns

    // # 5 # 457: Class-File API (Preview)

    // # 6 # 458: Launch Multi-File Source-Code Programs

    // # 7 # 459: String Templates (Second Preview)

    // # 8 # 460: Vector API (Seventh Incubator)

    // # 9 # 461: Stream Gatherers (Preview)

    // # 10 # 462: Structured Concurrency (Second Preview)

    // # 11 # 463: Implicitly Declared Classes and Instance Main Methods (Second Preview)

    // # 12 # 464: Scoped Values (Second Preview)
    }
}

class SystemProperties {
    public void print() {
        System.out.println(String.format("OS Name: %s", System.getProperty("os.name")));
        System.out.println(String.format("OS Version: %s", System.getProperty("os.version")));
        System.out.println(String.format("OS Architecture: %s", System.getProperty("os.arch")));
        System.out.println(String.format("Java Version: %s", System.getProperty("java.version")));
        // System.getProperties().list(System.out);
        System.out.println();
    }
}


// Output
/*
WARNING: Using incubator modules: jdk.incubator.vector
OS Name: Mac OS X
OS Version: 14.0
OS Architecture: aarch64
Java Version: 22
*/


/*
Courtesies:
https://openjdk.java.net
https://docs.oracle.com
*/