What is variable name?
A Variable name is used to refer to a variable (column of the data matrix) for all commands dealing with data in SPSS.
Variable names must be unique in a Dataset.
Variable names are up to 64 characters long and can only contain letters, digits and nonpunctuation characters (except that a period (.) is allowed..
Which is the invalid variable name?
The following are examples of valid variable names: age, gender, x25, age_of_hh_head. The following are examples of invalid variable names: age_ (ends with an underscore); 0st (starts with a digit);
Who is known as the father of C language?
Dennis RitchieC/Designed by
Is #data a legal variable name?
76trombones is illegal because it does not begin with a letter. more$ is illegal because it contains an illegal character, the dollar sign. Python keywords (Keywords define the language’s syntax rules and structure, and they cannot be used as variable names. )
What are valid variable names in C?
Rules for naming a variableA variable name can only have letters (both uppercase and lowercase letters), digits and underscore.The first letter of a variable should be either a letter or an underscore.There is no rule on how long a variable name (identifier) can be.
Which is not valid C variable name?
Which of the following is not a valid C variable name? Explanation: Since only underscore and no other special character is allowed in a variable name, it results in an error.
Is float a valid variable name?
float variables can be declared using the float keyword. A float is only one machine word in size. Therefore, it is used when less precision than a double provides is required.
What are C variables?
C variable is a named location in a memory where a program can manipulate the data. This location is used to hold the value of the variable. The value of the C variable may get change in the program. C variable might be belonging to any of the data type like int, float, char etc.
What are valid variable names in Java?
All variable names must begin with a letter of the alphabet, an underscore, or ( _ ), or a dollar sign ($). The convention is to always use a letter of the alphabet. The dollar sign and the underscore are discouraged. After the first initial letter, variable names may also contain letters and the digits 0 to 9.