Q.The textbook illustrates assignment within an executable part, which does not include the data type:

x = 10;  
sum = 300.00;  
name = "Ganapathi";  
ch = 'y';  

In the executable part a value is stored into an already-declared variable using the assignment operator =, without repeating the data type. …

[!TLDR]

Assignment in the executable part uses the = operator to place a value into a variable that has already been declared; the data type is not written again.

The assignment operator = copies the value on its right into the variable on its left. So x = 10; stores the integer 10 in x, sum = 300.00; stores the real value 300.00 in sum, and ch = 'y'; stores the character 'y' in ch. Unlike initialization, these statements appear in the executable part and do not restate the data type, because the variables were declared earlier. …