Use the getMaximum() method in Java to returns the maximum value for the given calendar field. We will use it to set the minute, second and milliseconds.Let us first declare a calendar object −Calendar dateNoon = Calendar.getInstance();Now, we will set the hour, minute, second and millisecond to the first possible millisecond of the month after midnight −// hour, minute and second calendar.set(Calendar.HOUR_OF_DAY, calendar.getMaximum(Calendar.HOUR_OF_DAY)); calendar.set(Calendar.MINUTE, calendar.getMaximum(Calendar.MINUTE)); calendar.set(Calendar.SECOND, calendar.getMaximum(Calendar.SECOND)); // millisecond calendar.set(Calendar.MILLISECOND, calendar.getMaximum(Calendar.MILLISECOND));The following is an example that return a Date set to the first possible millisecond of the month after midnight −Example Live Demoimport java.util.Calendar; import java.util.GregorianCalendar; public class Demo { ... Read More

Use the getMaximum() method in Java to returns the maximum value for the given calendar field. We will use it to set the minute, second and millisecond.Let us first declare a calendar object −Calendar dateNoon = Calendar.getInstance();Now, we will set the hour, minute, second and millisecond to the last possible millisecond on the month before midnight.// hour, minute and second calendar.set(Calendar.HOUR_OF_DAY, calendar.getMaximum(Calendar.HOUR_OF_DAY)); calendar.set(Calendar.MINUTE, calendar.getMaximum(Calendar.MINUTE)); calendar.set(Calendar.SECOND, calendar.getMaximum(Calendar.SECOND)); // millisecond calendar.set(Calendar.MILLISECOND, calendar.getMaximum(Calendar.MILLISECOND));Now, do the following for month and day of month −calendar.set(Calendar.DAY_OF_MONTH, 1); // first day of month calendar.add(Calendar.MONTH, 1); calendar.add(Calendar.DAY_OF_MONTH, -1);The following is an example to return a Date set to ... Read More

Use the System.getProperty() method in Java to get the Java Home Directory.It’s syntax is −String getProperty(String key)Above, the key is the name of the system property. Since, we want the Java Home Directory name, therefore we will add the key as −java.homeThe following is an example −Example Live Demopublic class Demo { public static void main(String[] args) { System.out.println("Get Java Home Directory = " + System.getProperty("java.home")); System.out.print("Java Specification Version: "); System.out.println(System.getProperty("java.specification.version")); System.out.print("java Runtime Environment ... Read More

To display the path separator, use the Properties class and import the following package −import java.util.Properties;Use the getProperties() method first and create an object −Properties p = System.getProperties();Now, set the key for path separator −p.getProperty("path.separator")The following is an example −Example Live Demoimport java.util.Properties; public class Demo { public static void main(String[] args) { Properties p = System.getProperties(); System.out.println("Separator is "+p.getProperty("path.separator")); } }OutputSeparator is :

In this article, we will discuss how to get the operating system name and version in Java. To get the name and version of the operating system we will be using the System.getProperty() method. Steps to get the operating system name and version The following are the steps to get the operating system name and version − We will start by defining a class named Demo and inside that we will create the main method.Inside that main method, we will use the os.name and os.version to get the name and version of the operating system.And at the ... Read More

Use the System.getProperty() method in Java to get the Java Runtime Environment.It’s syntax is −String getProperty(String key)Above, the key is the name of the system property. Since, we want the Java Runtime Environment name, therefore we will add the key as −java.versionThe following is an example −Example Live Demopublic class Demo { public static void main(String[] args) { System.out.print("Java Specification Version: "); System.out.println(System.getProperty("java.specification.version")); System.out.print("java Runtime Environment (JRE) version: "); System.out.println(System.getProperty("java.version")); } ... Read More

Use the System.getProperty() method in Java to get the Java Specification Version.It’s syntax is −String getProperty(String key)Above, the key is the name of the system property. Since, we want the Java Specification Version name, therefore we will add the key as −java.specification.versionThe following is an example −Example Live Demopublic class Demo { public static void main(String[] args) { System.out.print("Java Specification Version: "); System.out.println(System.getProperty("java.specification.version")); } }OutputJava Specification Version: 1.8

When the full name is provided, the initials of the name are printed with the last name is printed in full. An example of this is given as follows −Full name = Amy Thomas Initials with surname is = A. ThomasA program that demonstrates this is given as follows −Example Live Demoimport java.util.*; public class Example {    public static void main(String[] args) {       String name = "John Matthew Adams";       System.out.println("The full name is: " + name);       System.out.print("Initials with surname is: ");       int len = name.length();       ... Read More

To compare Float in Java, use the following methods −Method 1 − compareTo(newFloat) method in JavaThe java.lang.Float.compareTo() method compares two Float objects. This method returns the value 0 if the new float value is numerically equal to this Float; a value less than 0 if this Float is numerically less than new float; and a value greater than 0 if this Float is numerically greater than new float.Here is an example −Example Live Demoimport java.lang.*; public class Demo {    public static void main(String args[]) {       Float f1 = new Float("25.2");       Float f2 = new ... Read More

To apply modulus (%) operator to floating-point values in an effortless task. Let us see how.We have the following two values −double one = 9.7; double two = 1.2;Let us now apply the modulus operator −one % twoThe following is the complete example that displays the output as well −Example Live Demopublic class Demo { public static void main(String args[]) { double one = 9.7; double two = 1.2; System.out.println( one % two ); } }Output0.09999999999999964