Java is a versatile programming language that can be installed on Ubuntu 24.04 using different methods, such as “apt”, “deb”, or “SDKMAN”.
How to Get a Current Timestamp in Java?
To get a current timestamp in Java, we can use methods like “System.currentTimeMillis()”, “Instant.now()”, “Date()” constructor, etc.
How to Connect to PostgreSQL From Java
To connect PostgreSQL to Java, we can use an open-source JDBC driver. For this purpose, we can use the getConnection() method.
Understanding Java Literals With Examples
A literal is a synthetic representation of a boolean, char, string, or numeric data.
Java supports various types of literals, such as Integral, boolean, char, etc.
How to Convert a Timestamp to a Date in Java
We can use the “Date()” constructor, “Calendar” class, or “Date” Reference for converting a timestamp to a date in Java.
How to Get a Timezone List in Java
To get a timezone in Java, invoke the getDefault() method of the Timezone class. Use the getAvailableIDs() method to get all available timezone IDs.
How to Delete a Directory in Java
To delete a directory using Java, use methods like “delete()”, “FileUtils.deleteDirectory()”, and “FileSystemUtils.deleteRecursively()”.
How to Convert a String to a Timestamp Java
To convert a date string into a timestamp in Java, you can use built-in methods like “SimpleDateFormat.parse()” and “Timestamp.valueOf()”.