Core java

In this article, we will see how to format LocalDateTime to String in java. Java LocalDateTime To String To format LocalDateTime to String, we can create DateTimeFormatter and pass it to LocalDateTime’s format() method. [crayon-673faf005bb24701742221/] Here are steps: Get LocalDateTime instance Create DateTimeFormatter instance with specified format Pass above DateTimeFormatter to format() method to convert […]

In this post, we will see how to convert OutputStream to Byte array in Java. Convert OutputStream to Byte array in Java Here are steps to convert OutputStream to Byte array in java. Create instance of ByteArrayOutputStream baos Write data to ByteArrayOutputStream baos Extract byte[] using toByteArray() method. [crayon-673faf005c9d9146130694/] Output: Print output: Java2blog Convert OutputStream […]

In this article, we will see how to convert BufferedImage to Byte Array in Java. 💡 Outline To convert BufferedImage to byte array, you can use below code: [crayon-673faf005cac8394395244/] Java BufferedImage to Byte Array Here are steps to convert BufferedImage to Byte Array in java: Create instance of ByteArrayOutputStream baos. Call ImageIo.write() with bufferedImage, formatName […]

In this article, we will see how to convert byte array to BufferedImage in java. 💡 Outline To convert byte array to BufferedImage, you can use below code: [crayon-673faf005cb77501863640/] Convert byte array image to BufferedImage in java Using ByteArrayInputStream Here are steps to convert byte array to BufferedImage in java. Create ByteArrayInputStream object by passing […]

In this post, we will see how to convert BufferImage to Image in java. Convert BufferedImage to Image in Java BufferedImage is an Image, so you don’t need to do any conversion. You can just assign it as below: [crayon-673faf005cc34811563232/] Convert java.awt.image.BufferedImage to javafx.scene.image.Image in java You can use SwingFXUtils.toFXImage() to convert image from java.awt.image.BufferedImage […]

In this article, we will see how to convert byte array to base64 String in java. Using Base64 to Convert Byte Array to Base64 String in Java [ Java 8+] Java 8 has finally introduced Base64 functionalities via java.util.Base64 class. You can use Base64's encode() method to convert Byte Array to Base64 String in Java. […]

In this post, we will see how to escape Percent sign in String’s format() method in java. Escape Percent Sign in String’s Format Method in Java String’s format() method uses percent sign(%) as prefix of format specifier. For example: To use number in String’s format() method, we use %d, but what if you actually want […]

In this post, we will see how to print CLASSPATH in java. 💡 Outline You can use System.getProperty("java.class.path") to get ClassPath in java. [crayon-673faf005ced5427365680/] What is CLASSPATH in java CLASSPATH variables tell application to location where it should find user classes. Default CLASSPATH is current working directory(.). You can override this value using CLASSPATH variables […]

In this post, we will see how to get unicode value of character in java. Get Unicode Value of Character in Java You can simply use below code to get unicode value of character in java. [crayon-673faf005cf85464702334/] Here is complete example to print unicode value of character in java: [crayon-673faf005cf88635089474/] Output Unicode value of character […]