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Computer Programming using Java Iteration Statements - 04

CHAPTER 04

1 2 3 4 5

1 2 3 4 5

1 2 3 4 5 6 7 8

(Iteration Statements)

1. while

1. 1) (Iteration/Repetition)

(Condition) 2) 3 [1] while, [2] do-while [3] for

2. while 3

1 [] n (5 )

Initial; while(Condition) { Statement(s); Update; }

Condition False

True

Statement

Update

Initial while 1

while while while

(Initial)

(Condition) (Boolean Expression)

(Update) ( Infinite Loop)

int i = 1; while(i

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2 [] while (10 ) 1) "Java" 100 (5 ) 2) 10 2 (5 )

3. while (true)

while(true) { Statement(s); if(Condition) break; }

while if while break

while(true) (Condition)

while(true) if() break; if

Scanner kb = new ...; while(true) { int x = kb.nextInt(); if(x == 0) break; }

1 0

True

False True

Statement

Condition

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Computer Programming using Java Iteration Statements - 04

1 2 3 4

3 [] while(true) (10 ) 1) 1000 (5 )

2) 0-10 5 (5 )

4 [] 0 (10 )

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1 2 3 4

1 2 3 4

5 [] "*" (10 )

6 [] n 1 n sum sum (10 )

Enter number: 4 4 ****

Enter number: 6 6 ******

Enter number: -1 -1

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1 2 3 4

1 2 3 4

7 [] n (Factorial) ( 1 n) 4! = 1 x 2 x 3 x 4 = 24 (10 )

8 [] a b ab a b (10 )

b 0 Math

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9 [] a b () a x b a b (10 )

10 [] n 1 n 3 (10 )

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1 2 3

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11 [] - (10 )

2. for

1. for 3 while

Decimal Number: 14 Binary Number: 1110 Decimal Number: 345 Binary Number: 101011001

for(Initial;Condition;Update) { Statement(s); }

Condition False

True

Statement

Update

Initial for 1

for for for

[1] (Initial) [2] (Condition) [3] (Update) 3 for

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1 2 3

1 2 3 4 5 6 7 8

1 2 3

1 2 3 4 5

12 [] n (4 )

13 [] for (10 ) 1) "Get A" 1000 (5 )

2) 900 ( 78) (5 )

2. while for

1) while for 2) while for 3) while for

for(int i = 1; i

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14 [] while 6 9 for (20 ) 1) while 6 for (5 ) 2) while 7 for (5 ) 3) while 8 for (5 ) 4) while 9 for (5 )

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15 [ - ] for Math (30 ) 1) [] 40...15105 ++++ (5 )

2) [] 320...2781 ++++ (5 )

3) [] 1)(2...3115731 15 ++++++ (5 )

4) [] 301...

51

41

31

211 ++++ (5 )

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Computer Programming using Java Iteration Statements - 04

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5) [] 19!2...

11!2

9!2

7!2

5!2

3!22

19119753+++ (10 )

16 [] 100 - (Maximum) (Minimum) (Average) (10 )

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17 [] (10 )

18 [] 1 (15 )

Number: 17 17 is a prime number

Number: 45 45 is not a prime number

Number: 5 * ** *** **** *****

Number: 10 * ** *** **** ***** ****** ******* ******** ********* **********