FOR LOOP WALK THROUGH public class NestedFor { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int.

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Presentation transcript:

FOR LOOP WALK THROUGH public class NestedFor { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } }

public class NestedFor // FIRST TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 1 1 is less than or equal to 7 j = 1 1 is less than or equal to 1 Print *, increment, and loop 2 is NOT equal to 1 so fall out and return to outer for New line *

public class NestedFor // SECOND TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 2 2 is less than or equal to 7 j = 1 1 is less than or equal to 2 Print *, increment, and loop 2 is less than or equal to 2 Print *, increment, and loop 3 is NOT equal to 2, so fall out and return to outer for New line * 03 **

public class NestedFor // THIRD TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 3 3 is less than or equal to 7 j = 1 1 is less than or equal to 3 Print *, increment, and loop 2 is less than or equal to 3 Print *, increment, and loop 3 is less than or equal to 3 Print *, increment, and loop 4 is NOT equal to 3, so fall out and return to outer for New line * 03 ** 04 ***

public class NestedFor // FOURTH TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 4 4 is less than or equal to 7 j = 1 1 is less than or equal to 4 Print *, increment, and loop 2 is less than or equal to 4 Print *, increment, and loop 3 is less than or equal to 4 Print *, increment, and loop 4 is less than or equal to 4 Print *, increment, and loop 5 is NOT equal to 4, so fall out and return to outer for New line * 03 ** 04 *** 05 ****

public class NestedFor // FIFTH TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 5 5 is less than or equal to 7 j = 1 1 is less than or equal to 5 Print *, increment, and loop 2 is less than or equal to 5 Print *, increment, and loop 3 is less than or equal to 5 Print *, increment, and loop 4 is less than or equal to 5 Print *, increment, and loop 5 is less than or equal to 5 Print *, increment, and loop 6 is NOT equal to 5, so fall out and return to outer for New line * 03 ** 04 *** 05 **** 06 *****

public class NestedFor // SIXTH TIME THROUGH THE LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 6 6 is less than or equal to 7 j = 1 1 is less than or equal to 6 Print *, increment, and loop 2 is less than or equal to 6 Print *, increment, and loop 3 is less than or equal to 6 Print *, increment, and loop 4 is less than or equal to 6 Print *, increment, and loop 5 is less than or equal to 6 Print *, increment, and loop 6 is less than or equal to 6 Print *, increment, and loop 7 is NOT equal to 6, so fall out and return to outer for New line * 03 ** 04 *** 05 **** 06 ***** 07 ******

public class NestedFor // SEVENTH TIME THROUGH LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 7 7 is less than or equal to 7 j = 1 1 is less than or equal to 7 Print *, increment, and loop 2 is less than or equal to 7 Print *, increment, and loop 3 is less than or equal to 7 Print *, increment, and loop 4 is less than or equal to 7 Print *, increment, and loop 5 is less than or equal to 7 Print *, increment, and loop 6 is less than or equal to 7 Print *, increment, and loop 7 is less than or equal to 7 Print *, increment, and loop 8 is NOT equal to 7, so fall out and return to outer for New line * 03 ** 04 *** 05 **** 06 ***** 07 ****** 08 *******

public class NestedFor // EIGHTH TIME THROUGH LOOP { public static void main(String [] args) { for (int i = 1; i <= 7; i++) { System.out.println(); for (int j = 1; j <= i; j++) { System.out.print("*"); } } } } i = 8 8 is NOT less than 7 Break from for loop * 03 ** 04 *** 05 **** 06 ***** 07 ****** 08 ******* 8