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Found 9150 Articles for Object Oriented Programming

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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 :

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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

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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

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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

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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

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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

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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

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The following is the supplied byte array −byte[] b = new byte[]{'x', 'y', 'z'};We have created a custom method “display” here and passed the byte array value. The same method converts byte array to hex string −public static String display(byte[] b1){ StringBuilder strBuilder = new StringBuilder(); for(byte val : b1){ strBuilder.append(String.format("%02x", val&0xff)); } return strBuilder.toString(); }Let us see the entire example now −Example Live Demopublic class Demo { public static void main(String args[]) { byte[] b = new byte[]{'x', 'y', ... Read More

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In this article, we will learn to use DateFormat.LONG to format dates in Java. Handling dates and times efficiently is crucial for most applications. The Java Date and DateFormat classes provide a flexible and simple way to format dates and times. What is DateFormat.LONG? DateFormat.LONG is a constant provided by the DateFormat class in Java. It represents a predefined style for formatting dates in a long, readable format. When you use DateFormat.LONG, Java will format the date in a verbose format, typically displaying the day, month, and year in a comprehensive, localized form.DateFormat.LONG is a constant for long-style patterns. For ... Read More

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DateFormat.MEDIUM is a constant for medium style pattern.Firstly, we will create date object −Date dt = new Date(); DateFormat dateFormat;Let us format date for different locale with DateFormat.MEDIUM −// CHINESE dateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM, Locale.CHINESE); // CANADA dateFormat = DateFormat.getDateInstance(DateFormat. MEDIUM, Locale.CANADA);The following is an example −Example Live Demoimport java.text.DateFormat; import java.util.Date; import java.util.Locale; public class Demo { public static void main(String args[]) { Date dt = new Date(); DateFormat dateFormat; // Date Format MEDIUM constant ... Read More