loops

public class Q1
{
   public static void main(String [] args)
   {
      for(int i=1; i<3; i++)
      {
        for(int j=1; j<5; j++)
            System.out.print("T");
        System.out.println();
      }
    }
}

Draw flowchart here

Update your counters

i	j
1
	1

Output:

Rewrite the following statements in a “for” loop and a "while" loop.

     Arr[0] = 1;
     Arr[1] = Arr[0]*3;
     Arr[2] = Arr[1]*3;

Arr[3] = Arr[2]*3;

Arr[4] = Arr[3]*3;

Arr[5] = Arr[4]*3;

Arr[6] = Arr[5]*3;

Arr[7] = Arr[6]*3;

Arr[8] = Arr[7]*3;

Arr[0] = 1;
for(int i=1; i<9; i++)
Arr[i] = Arr[i-1] * 3;

Arr[0] = 1;
int i=1;
while(i<9)
{
Arr[i] = Arr[i-1] * 3;
i++;
}

3. Find the output of the following program:

public class Q2
{
   public static void main(String [] args)
   {
     int num;
     for(int i=0;i<2;i++)
     {
        num = 3;
        while(num > 0)
        {
	  System.out.printf("%d %d\n", i, num); 
          num--;
        }
        System.out.println("Good Job!");
     }
     System.out.println("Good Bye!");

    }
}

Memory Box:

num	i