Ideas in this flowchart

• Java requires explicit casts when assigning floating-point values to integers.
• Java does not support implicit type casts.
• Assigning a floating-point number to an integer without a cast causes a compiler error.
• An explicit cast allows the floating-point expression to be assigned to an integer.
• The explicit cast can be written as d = (int) (b + y).
• The expression b + y is computed as 20 + 3.4 = 23.4.
• Casting 23.4 to int truncates the fractional part .4.
• After truncation, d receives the value 23.
• Assigning an int value to a double variable is allowed.
• The integer 2 becomes the floating-point value 2.0.