how to break the for loop with respect to other for loop

Question

i saw how to break the loop (using label and break the label) .. but i want to break the first for loop depends on the second for loop :

for example :

public class HelloWorld {

    static private int i;
    public static void main(String[] args) {
        int y = 20;
        for (; y <= 30; y += 2) 
        {
            System.out.printf("value of increamented  y Value is %d\n", y);
            increamentiValue();
        }
    }

    private static void increamentiValue() 
    {
        i = 0;
        for (; i <= 5; i += 2) {
            System.out.printf("value of i is %d\n", i);
        }
    }
}

for instance here i want to break the "y" loop depends on the number of iteration in "i" loop ..

for ex:

i want to break "y" for loop if the number iteriation in "i" loop is equal to 0 .. because in my program "i" checks the error ... in my ysytem error may occur any "i" .. if two times i dosnt have error (i==0) i want to break the "y" loop.

EX :
if
At y= 22 , i ==0; (no error occurs)
at y= 23 , i ==0; (no error occurs)

i dont want to proceed till 30. i want to break y loop .

Please take the time to ensure your code is formatted readably. I've done it for you on this occasion. — T.J. Crowder
– T.J. Crowder, Commented Nov 26, 2013 at 13:54
Please change int y=20;for(; y<=30... to for(int y=20; j<=30.... It is easier to read and understand. — SJuan76
– SJuan76, Commented Nov 26, 2013 at 13:55
Why use a for loop but put the initializer above it? Why use an instance variable in your for loop? — T.J. Crowder
– T.J. Crowder, Commented Nov 26, 2013 at 13:55

T.J. Crowder · Accepted Answer · 2013-11-26 13:54:19Z

3

Have increamenti_Value return a value that main uses to terminate the loop.

Separately, though, using an instance variable (i) in the for loop in increamenti_Value is a very suspect thing to do. It's also quite odd to use a for loop, leave out the initializer clause, and yet set the initial condition on the line above.

answered Nov 26, 2013 at 13:54

T.J. Crowder

1.1m201 gold badges2k silver badges2k bronze badges

Sign up to request clarification or add additional context in comments.

5 Comments

user2965711 Over a year ago

can u give me an example ... as i am one week old in java

T.J. Crowder Over a year ago

@user2965711: I'm afraid I can't, because it's not clear what you mean by "i want to break "y" for loop if the number iteriation in "i" loop is equal to 0" Because you're setting i to 0 in the function, it will always loop three times (when i == 0, i == 2, i == 4, all of which are <= 5 which is the loop termination condition).

user2965711 Over a year ago

in my case .. "i" is a error check ... in my system error can fall between (i= 1 or 2 or 3 or 4 or 5) sometimes error wont fall .. hence if 2 times error not falls i want to break the "y"loop

T.J. Crowder Over a year ago

@user2965711: I'm sorry, I think you need to have a friend or coworker help you with your English. Your question and comments are not at all clear. What does "if 2 times error not fails" mean? You're doing some operation twice and it needs to not fail both times? You've tried it twice and one of them worked?

user2965711 Over a year ago

np .. but now i am trying with your idea .. i will keep try .. thanks for your support

Mason T. · Accepted Answer · 2013-11-26 13:59:56Z

1

Have the incrementi_Value return the value of i and check that value in your y loop.

incrementi_Value == 0 ? break : continue;

Change private static void incrementi_Value -> private static int incrementi_Value

then place a return i; when you want to return the current value of i.

edited Nov 26, 2013 at 13:59

answered Nov 26, 2013 at 13:54

Mason T.

1,5771 gold badge15 silver badges33 bronze badges

1 Comment

user2965711 Over a year ago

this is what i tried .. but i am not getting the output ... how to return the value of "i"

Bohemian · Accepted Answer · 2013-11-26 13:56:39Z

0

Instead of increamenti_Value() being void, make it return boolean - true if the caller should break, false otherwise:

private static boolean increamenti_Value() {
    // return true if you want the caller to break
}

And instead of calling it like you are, call it like this:

if (increamenti_Value())
    break;

Note that a called method having knowledge of when the caller should do something doesn't seem like a good design. You may want to reconsider your logic.

answered Nov 26, 2013 at 13:56

Bohemian♦

427k103 gold badges603 silver badges750 bronze badges

Collectives™ on Stack Overflow

how to break the for loop with respect to other for loop

3 Answers 3

5 Comments

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

5 Comments

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related