Generating a CRC32 checksum in Java is – as you would expect – extremely simple. All it takes is a few lines of code. Below is an example on how to generate a CRC32 checksum from a string.<\/p>\n
\r\npublic final class AppUtils {\r\n private AppUtils() { }\r\n\r\n public static long crc32(String input) {\r\n byte[] bytes = input.getBytes();\r\n Checksum checksum = new CRC32(); \/\/ java.util.zip.CRC32\r\n checksum.update(bytes, 0, bytes.length);\r\n\r\n return checksum.getValue();\r\n }\r\n}\r\n<\/pre>\nIn the example above, the code required to generate the CRC32 checksum has been wrapped in a convenient helper class, such that you can use the static method as follows.<\/p>\n
\r\nlong checksum = AppUtils.crc32(\"Turn this into a CRC32 checksum!\");\r\n<\/pre>\n