Explain More on Expressions in while Statements.
Operations
In mathematics and computer science, an operation is an event that is carried out to satisfy a given task. Basic operations of a computer system are input, processing, output, storage, and control.
Basic Operators
An operator is a symbol that indicates an operation to be performed. We are familiar with operators in mathematics; operators used in computer programming are—in many ways—similar to mathematical operators.
Division Operator
We all learnt about division—and the division operator—in school. You probably know of both these symbols as representing division:
Modulus Operator
Modulus can be represented either as (mod or modulo) in computing operation. Modulus comes under arithmetic operations. Any number or variable which produces absolute value is modulus functionality. Magnitude of any function is totally changed by modulo operator as it changes even negative value to positive.
Operators
In the realm of programming, operators refer to the symbols that perform some function. They are tasked with instructing the compiler on the type of action that needs to be performed on the values passed as operands. Operators can be used in mathematical formulas and equations. In programming languages like Python, C, and Java, a variety of operators are defined.
Explain More on Expressions in while Statements.
WHILE expression
- The while loop is referred to as an "entry-controlled loop" that evaluates the expression first and then process the statements within the loop. The body of the loop executes only when the expression evaluates to true.
- Whenever while statement encounters in the program, the expression evaluates and if its result is true then the statements in the body of the loop will execute. The loop statements execute repeatedly until the expression becomes false.
- The expression in the while statement returns a boolean value that is either true or false after evaluation.
- An expression evaluates to true only when its result is non-empty and holds non-zero values. The expression is false for the empty results.
- There can be more than one conditional expression in a while loop.
- The expression in the while statement should be defined properly otherwise the loop can execute infinitely.
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