Explain the char data type in java?

A char is a single character in which a letter, a digit, a punctuation mark, a tab, a space or something same. A char literal is a single one character enclosed within single quote marks like this

char myCharacter = 'g';

A few characters are hard to type. For these Java gives escape sequences. This is a backslash followed through an alphanumeric code. For instance '\n' is the newline character. '\t' is the tab character. '\\' is the backslash itself. The subsequent escape sequences are described:

The double quote escape sequence is used majorly inside strings where it would otherwise terminate the string. For example

System.out.println("And then Jim said, \"Who's at the door?\"");

It isn't essential to escape the double quote inside single quotes. The subsequent line is legal in Java

char doublequote = '"';