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Thread: Easy.

  1. #1
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    Default Easy.

    I know this is easy to most of you. Even though I will be look stupid if
    I will ask help about this simple problem. I'm not fun of using for loop
    in my programs, I really don't know how to do it.

    Output:
    *****
    *****
    *****
    *****
    *****
    public class Ex1
    {
      public static void main (String args[])
      {
     
    	int x = 0;
    	int y = 0;
     
    	for(y=0;y<5;y++)
    	{
    		for(x=0;x<4;x++)
    		{	  
    		System.out.print("*");	
    		}	
    		System.out.println("*");
    	}

    Output:
    *
    **
    ***
    ****
    *****
    public class Ex2
    {
      public static void main (String args[])
      {
     
     
     
    	for(int y=0;y<5;y++)
    	{
    		for(int x=0;x<y;x++)
    		{	  
    		System.out.print("*");	
    		}	
    		System.out.println("*");
    	}		
     
    	}
    }



    I made those simple codes on the upper. Now my problem is how can I make
    an output like this, using for loop not just by simple System.out.print();

    ............*
    ..........**
    ........***
    ......****
    ....*****
    PS: The Periods/dots aren't included in output, I just can't move the
    asterisk in those positions.
    Last edited by Totel; September 26th, 2012 at 09:25 AM. Reason: For Clarification.
    public class Newbie
    {
      public static void main (String args[])
      { 
     
    	for(int num=0;num<1;num=num+1)
    	{	
    	System.out.println("Dumb");
    	}
     
     
       }
    }


  2. #2
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    Default Re: Easy.

    Using your Ex2 as a base for it, notice how for(int x = 0; x < y; x++) will never be true the first time around, as both x and y would equal 0. This is the cause for you needing to add that extra star after the loop.
    A better approach would be to set the outer loop to begin at 1 and test for EQUAL TO and LESS THAN.

    As you've already got Ex2 done, i'll give you a rework of it so that you can understand and better solve this next step.

    	public static void main(String args[]) {
     
    		final int MAX_ROW = 5;
    		final String ARROW = "->";
     
    		for (int row = 1; row <= MAX_ROW; row++) {
     
    			for (int col = 0; col < row; col++) {
    				System.out.print("*");
    			}
    			System.out.println("");
    		}
     
    	}

    Ofcourse the fix will be the same in both templates, I just hope you can try understand your problem better when values etc are clearer.
    Last edited by newbie; September 26th, 2012 at 09:39 AM.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

  3. #3
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    Default Re: Easy.

    Quote Originally Posted by newbie View Post
    Using your Ex2 as a base for it, notice how for(int x = 0; x < y; x++) will never be true the first time around, as both x and y would equal 0. This is the cause for you needing to add that extra star after the loop.
    A better approach would be to set the outer loop to begin at 1 and test for EQUAL TO and LESS THAN.

    As you've already got Ex2 done, i'll give you a rework of it so that you can understand and better solve this next step.

    	public static void main(String args[]) {
     
    		final int MAX_ROW = 5;
    		final String ARROW = "->";
     
    		for (int row = 1; row <= MAX_ROW; row++) {
     
    			for (int col = 0; col < row; col++) {
    				System.out.print("*");
    			}
    			System.out.println("");
    		}
     
    	}

    Ofcourse the fix will be the same in both templates, I just hope you can try understand your problem better when values etc are clearer.
    Using 2 for Loops and 2 SoP it's possible ?
    public class Newbie
    {
      public static void main (String args[])
      { 
     
    	for(int num=0;num<1;num=num+1)
    	{	
    	System.out.println("Dumb");
    	}
     
     
       }
    }

  4. #4
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    Default Re: Easy.

    You'll need 3 "SoP"s to complete it.
    Please use [highlight=Java]//code goes here...[/highlight] tags when posting your code

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