Java Coding Problems

What about Unicode characters?

We are pretty familiar with ASCII characters. We have unprintable control codes between 0-31, printable characters between 32-127, and extended ASCII codes between 128-255. But what about Unicode characters? Consider this section for each problem that requires that we manipulate Unicode characters.

So, in a nutshell, early Unicode versions contained characters with values less than 65,535 (0xFFFF). Java represents these characters using the 16-bit char data type. Calling charAt(i) works as expected as long as i doesn't exceed 65,535. But over time, Unicode has added more characters and the maximum value has reached 1,114,111 (0x10FFFF). These characters don't fit into 16 bits, and so 32-bit values (known as ...