Classes and objects in Java must be initialized before they are used. You’ve previously learned that class fields are initialized to default values when classes are loaded, and that objects are ...

Some of the helpful methods of the Java Integer class include: MIN_VALUE and MAX_VALUE to help determine the range. floatValue to return an Integer as a float..equals to compare an Integer to another ...

How use Java printf to format int values. It’s much easier to format an int with printf than a float or double, because decimal precision is not a concern.. To use Java’s printf to format an int, long ...

Java does automatic type-casting when a math operator has operands of 2 different data-types, it will convert a smaller data-type to a larger data-type, for example int -> float, so the operator can ...