Once we've created these Strings and encoded them as ASCII characters, we can print them: ��ta radi��? String asciijapaneseString = new String(japaneseString.getBytes(), StandardCharsets.US_ASCII) String asciigermanString = new String(germanString.getBytes(), StandardCharsets.US_ASCII) Now, let's leverage the String(byte bytes, Charset charset) constructor of a String, to recreate these Strings, but with a different Charset, simulating ASCII input that arrived to us in the first place: String asciiSerbianString = new String(serbianString.getBytes(), StandardCharsets.US_ASCII) String japaneseString = "よろしくお願いします" // Pleased to meet you. String germanString = "Wie heißen Sie?" // What's your name? Let's write out a couple of Strings: String serbianString = "Šta radiš?" // What are you doing? We'll be working with a few Strings that contain Unicode characters you might not encounter on a daily basis - such as č, ß and あ, simulating user input. Additionally, not all output might handle UTF-16, so it makes sense to convert to a more universal UTF-8. You might actually receive an ASCII-encoded String, which doesn't support as many characters as UTF-8. Not all input might be UTF-16, or UTF-8 for that matter. Why would we need to convert to UTF-8 then? Note: Java encodes all Strings into UTF-16, which uses a minimum of two bytes to store code points. ![]() ![]() UTF-8 uses one byte to represent code points from 0-127, making the first 128 code points a one-to-one map with ASCII characters, so UTF-8 is backward-compatible with ASCII. "Variable-width" means that it encodes each code point with a different number of bytes (between one and four) and as a space-saving measure, commonly used code points are represented with fewer bytes than those used less frequently. UTF-8 represents a variable-width character encoding that uses between one and four eight-bit bytes to represent all valid Unicode code points.Ī code point can represent single characters, but also have other meanings, such as for formatting. ![]() When working with Strings in Java, we oftentimes need to encode them to a specific charset, such as UTF-8.
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