Selected Reading

Go - Decision Making

Quiz

Decision making structures require that the programmer specify one or more conditions to be evaluated or tested by the program, along with a statement or statements to be executed if the condition is determined to be true, and optionally, other statements to be executed if the condition is determined to be false.

Following is the general form of a typical decision making structure found in most of the programming languages −

Types of Decision Making Statements

Go programming language provides the following types of decision making statements. Click the following links to check their detail.

Sr.No	Statement & Description
1	if statement An if statement consists of a boolean expression followed by one or more statements.
2	if...else statement An if statement can be followed by an optional else statement, which executes when the boolean expression is false.
3	nested if statements You can use one if or else if statement inside another if or else if statement(s).
4	switch statement A switch statement allows a variable to be tested for equality against a list of values.
5	select statement A select statement is similar to switch statement with difference that case statements refers to channel communications.

Example - Usage of If Statement

This example demonstrates how to use an if statement in Go to check a condition and execute a block of code when the condition is true.

main.go

package main

import "fmt"

func main() {
   /* local variable definition */
   var a int = 20
 
   /* check the boolean condition using if statement */
   if( a < 30 ) {
      /* if condition is true then print the following */
      fmt.Printf("a is less than 30\n" )
   }
   fmt.Printf("value of a is : %d\n", a)
}

Output

When the above code is compiled and executed, it produces the following result −

a is less than 30;
value of a is : 20

Previous Quiz Next