Why use typesafe enums, not enumerated types. An enumerated type specifies a set of related constants as its values. Examples include the days in a week, the standard north/south/east/west compass ...

You might know that Java passes by value, but it helps to understand why. Here's what happens when you pass mutable and immutable object references in Java.

How do you use Java’s conditional operator? To use the Java ternary operator, follow these steps: In round brackets, provide a condition that evaluates to true or false. Place a question mark after ...

How use Java printf to format a double’s decimals. To use Java printf to format double and float values with decimal place precision, follow these two rules:. Use %f as the double specifier in the ...