java system.getproperty

system.getproperty( )

Key	Meaning
"file.separator"	Character that separates components of a file path. This is "/" on UNIX and "\" on Windows.
"java.class.path"	Path used to find directories and JAR archives containing class files. Elements of the class path are separated by a platform-specific character specified in the path.separator property.
"java.home"			Installation directory for Java Runtime Environment (JRE)
"java.vendor"		JRE vendor name
"java.vendor.url"	JRE vendor URL
"java.version"		JRE version number
"line.separator"	Sequence used by operating system to separate lines in text files
"os.arch"			Operating system architecture
"os.name"			Operating system name
"os.version"		Operating system version
"path.separator"	Path separator character used in java.class.path
"user.dir"			User working directory
"user.home"			User home directory
"user.name"			User account name

Posted by: Guest on February-25-2021

Source

// find value is number or not in java.. // if the value is number output is true // if the value is not a number then output is false.. public class Test { public static void main(String args[]) { System.out.println(Character.isDigit('c')); // false System.out.println(Character.isDigit('5')); // true } }

Runnable r = ()-> System.out.print("Run method"); // is equivalent to Runnable r = new Runnable() { @Override public void run() { System.out.print("Run method"); } };

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