# python program to illustrate If else statement
#!/usr/bin/python
i = 20
if (i < 15):
print("i is smaller than 15")
print("i'm in if Block")
else:
print("i is greater than 15")
print("i'm in else Block")
print("i'm not in if and not in else Block")
if (condition1) {
// block of code to be executed if condition1 is true
} else if (condition2) {
// block of code to be executed if the condition1 is false and condition2 is true
} else {
// block of code to be executed if the condition1 is false and condition2 is false
}
if(Boolean_expression) {
// Statements will execute if the Boolean expression is true
}
If the Boolean expression evaluates to true then the block of code inside the if statement will be executed. If not, the first set of code after the end of the if statement (after the closing curly brace) will be executed.
if( name = 'george washington'):
print("You have the same name as the first president of the United States")
// python
else:
print("You do not have the same name as George Washington")
#converting weight into pounds orkilograms.
given_weight=int(input('given_weight'))
unit=input('(K)G or (L)bs')
if unit.upper() == 'K':
pounds=given_weight/0.45
print('weight in pounds',pounds)
else:
kilograms=given_weight*0.45
print('weight in kg',kilograms)
________________________________________________________________________________
//An if statement can be followed ba an optional else statement, which
//executes whe the Boolean expression is false
if(Boolean_expression) {
// Executes when the Boolean expression is true
}else {
// Executes when the Boolean expression is false
}
var a = prompt("value 1")
var b = prompt("value 2")
var c = prompt("value 3")
var d = prompt("value 4")
var e = prompt("value 5")
if (a >= b && a >= c && a >= d && a >= e) {
console.log(a + " this is greater value")
}
else if (b >= a && b >= c && b >= d && b >= e) {
console.log(b + " this is greater value")
}
else if (c >= a && c >= b && c >= d && c >= e) {
console.log(c + " this is greater value")
}
else if (d >= a && d >= b && d >= c && d >= e ) {
console.log(d + " this is greater value")
}
else if(e >= a && e >= b && e >= c && e >= d){
console.log(e + " this is greater value")
}
else{"enter the valid number"}
var condition = true; // An example condition for true/false conditions
if (condition == true) {
console.log('condition is true');
} else {
console.log('condition is not true');
} // Console will output 'condition is true'
var age = prompt("enter your age")
if (age>= 60){
console.log("you are older")
}
else if (age >=18){
console.log("you are adult")
}
else if (age < 18){
console.log("you are child")
}
>> number=23
>> guess = input('Enter a number : ')
>> if guess == number:
>> print('Congratulations! You guessed it.')
>> elif guess < number:
**( It is giving me 'Invalid Syntax')**
>> else:
**( It is also giving me 'Invalid syntax')**
if(condition){
//action to take if condition is met
} else if(condition){
//action to take if first condition is not met but there is a second condition
} else{
//actioon to take if all conditions are not met
}
using System;
class NumbersNotDivisibleByThreeAndSeven
{
static void Main()
{
Console.WriteLine("Please enter your number: ");
int n = int.Parse(Console.ReadLine());
for (int i = 1; i <= n; i++)
{
if (i % 3 == 0)
{
continue;
}
else if (i % 7 ==0)
{
continue;
}
Console.Write("{0} ", i);
}
Console.WriteLine();
}
}
var a = prompt("Enter s for squareEnter t for triangle")
if (a=="s", a=="S"){
var side = prompt("enter the value")
var b = side *side;
console.log(b,"this is square area")
}
else if(a=="t", a=="T"){
var base = prompt("enter the base value")
// base = 1/2;
var height = prompt("enter the height")
area=1/2*base*height;
console.log(area,"this is the area of triangle")
}
else{console.log("invalid input")};
How is written:
if() {
}
"if" is used to do something just IF a condition is true
In parenthesis, you place your condition. The condition should be of type true/false.
Examples:
if(1 + 2 == 3); if(4 > 3); if(variable != 7);
"Note!" If you want to check an equality / inequality use "==" / "!=";
If the condition is true, whatever is between braces is gonna happen;
Connected to an "if" Statment there can also be "else if" or "else"
Examples:
if(variable == 2) { //Code }
else if(variable == 1) { //Code }
else if (variable == 0) { //Code }
else { //Code }
If the first if the condition wasn't true then it will check the other "else if".
If one of them is true the rest won't be checked by the program
And if none of the if/else if are true, the program will execute the code in the else braces.
"Note!" There can only be one "else" in an if statement and how many "else if" you want
using System;
class NumbersNotDivisibleBy3And7
{
static void Main()
{
Console.WriteLine("Enter an integer:");
int n = int.Parse(Console.ReadLine());
for (int i = 1; i <= n; i++)
{
if (i % 3 != 0 && i % 7 != 0)
{
Console.Write("{0} ", i);
}
}
Console.WriteLine();
}
}
public class Test {
public static void main(String args[]) {
int x = 30;
if( x < 20 ) {
System.out.print("This is if statement");
}else {
System.out.print("This is else statement");
}
}
}
public class IfElseIfExample {
public static void main(String args[]){
int num=1234;
if(num <100 && num>=1) {
System.out.println("Its a two digit number");
}
else if(num <1000 && num>=100) {
System.out.println("Its a three digit number");
}
else if(num <10000 && num>=1000) {
System.out.println("Its a four digit number");
}
else if(num <100000 && num>=10000) {
System.out.println("Its a five digit number");
}
else {
System.out.println("number is not between 1 & 99999");
}
}
}