FOR Statement FOR Statement Presentation:Presentation:

Group Members: Muhammad Saleem Nagri 10-EE-38Mazhar Ali balti 10-EE-49Ehtisham ul Haq Chilasi 10-EE-48Khalid Amin Qazi 10-EE-160

Asad Ali Jaffari 10-EE-164

Mirpur university of Science and technology AJ&K ,Pakistan

The For StatementThe For Statement

For statement is repetition statement that is particularly well suited for executing the body of a loop a specific number of times that can be determined before the loop is executed.The header of a for loop contains three parts separated by semicolons. Before the loop begins, the first part of the header, called the initialization, is executed.The second part of the header is the boolean condition, which is evaluated before the loop body (like the while loop). If true, the body of the loop is executed, followed by the execution of the third part of the header, which is called increment.

Logic of a for loopLogic of a for loop

statement

true

conditionevaluated

false

increment

initialization

The for StatementThe for StatementA for statement has the following syntax:

for ( initialization ; condition ; increment ){ statement;}

The initializationis executed once

before the loop begins

The statement isexecuted until the

condition becomes false

The increment portion is executed at the end of each

iteration

The for Statement

• Example:

for (int i = 1; i <= n; i++) { double interest = balance * rate / 100; balance = balance + interest;}

• Use a for loop when a variable runs from a starting value to an ending value with a constant increment or decrement

for Loops

for Loop Flowchart

Execution of a for Loop

for Loop Examples

import cs1.Keyboard;

public class Multiples

{

public static void main (String[] args)

{

final int PER_LINE = 5;

int value, limit, mult, count = 0;

System.out.print ("Enter a positive value: ");

value = Keyboard.readInt();

System.out.print ("Enter an upper limit: ");

limit = Keyboard.readInt();

System.out.println ();

System.out.println ("The multiples of " + value + " between " +

value + " and " + limit + " (inclusive) are:");

for (mult = value; mult <= limit; mult += value)

{

System.out.print (mult + "\t");

count++;

if (count % PER_LINE == 0)

System.out.println();

for (mult = value; mult <= limit; mult += value)

{ System.out.print (mult + "\t");

count++;

if (count % PER_LINE == 0)

System.out.println(); } } }

OUTPUT:

Enter a positive value: 7

Enter an upper limit: 400

The multiples of 7 between 7 and 400 (inclusive) are:

7 14 21 28 35

42 49 56 63 70

77 84 91 98 105

112 119 126 133 140

147 154 161 168 175

182 189 196 203 210

217 224 231 238 245

252 259 266 273 280

287 294 301 308 315

322 329 336 343 350

357 364 371 378 385

392 399

Nested Loop Examples

Nested Loop Examples

THANK YOU……THANK YOU…… THE END……..