Writing a variable to a file results in a file containing the variable name and the value. ## Use string concatenation to write a variable to file {#use-string-concatenation} Use [`open(file, ...

Writing a variable to a file results in a file containing the variable name and the value.

All of Java's I/O facilities are based on streams that represent flowing sequences of characters or bytes. Java's I/O streams provide standardized ways to read and write data. Any object representing ...