• Represents data type memory range from small to large graph

  • Automatic type conversion

    Assign a small value or variable to a large variable.

    The following example shows that it is possible to assign a small value to a large value, but it is not possible to convert across large data types, such as: integer to integer, floating point to floating point…

    Public class test {public static void main(String[] args) {public static void main(String[] args) { short b = a; System.out.println(b); Char c = a; char c = a; // Error system.out.println (c); }}Copy the code

  • Cast casting

    Assign a value or variable representing a large range of data to another variable representing a small range.

    Format: Data type variable name = (strong data type) value or variable

    Public class test {public static void main(String[] args) {public static void main(String[] args) { short b = a; System.out.println(b); Char c = (char)a; char c = (char)a; System.out.println(c); }}Copy the code