Syntax error Get the default system properties in Java

Get the default system properties in Java

To return all the default systems properties in Java, firstly use the System.getProperties() method.

java.util.Properties prop = System.getProperties();

After that, use the list() method to list all of them.

prop.list(System.out);

Example

 Live Demo

public class Demo {
    public static void main(String[] args) {
       java.util.Properties prop = System.getProperties();
       System.out.println("Here are the Properties:");
       prop.list(System.out);
    }
}

Output

Here are the Properties:
java.runtime.name=OpenJDK Runtime Environment
sun.boot.library.path=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0...
java.vm.version=25.141-b16
java.vm.vendor=Oracle Corporation
java.vendor.url=http://java.oracle.com/
path.separator=:
java.vm.name=OpenJDK 64-Bit Server VM
file.encoding.pkg=sun.io
user.country=US
sun.java.launcher=SUN_STANDARD
sun.os.patch.level=unknown
java.vm.specification.name=Java Virtual Machine Specification
user.dir=/home/cg/root/3757524
java.runtime.version=1.8.0_141-b16
java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment
java.endorsed.dirs=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0...
os.arch=amd64
java.io.tmpdir=/tmp
line.separator=

java.vm.specification.vendor=Oracle Corporation
os.name=Linux
sun.jnu.encoding=UTF-8
java.library.path=/home/cg/root/GNUstep/Library/Librari...
java.specification.name=Java Platform API Specification
java.class.version=52.0
sun.management.compiler=HotSpot 64-Bit Tiered Compilers
os.version=3.10.0-862.9.1.el7.x86_64
user.home=?
user.timezone=
java.awt.printerjob=sun.print.PSPrinterJob
file.encoding=UTF-8
java.specification.version=1.8
user.name=?
java.class.path=/home/cg/root/GNUstep/Library/Librari...
java.vm.specification.version=1.8
sun.arch.data.model=64
java.home=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0...
sun.java.command=Demo
java.specification.vendor=Oracle Corporation
user.language=en
awt.toolkit=sun.awt.X11.XToolkit
java.vm.info=mixed mode
java.version=1.8.0_141
java.ext.dirs=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0...
sun.boot.class.path=/usr/lib/jvm/java-1.8.0-openjdk-1.8.0...
java.vendor=Oracle Corporation
file.separator=/
java.vendor.url.bug=http://bugreport.sun.com/bugreport/
sun.cpu.endian=little
sun.io.unicode.encoding=UnicodeLittle
sun.cpu.isalist=
Updated on: 2020-06-26T15:04:28+05:30

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