assignment for conversion of loop from while to for and do while

dear students please convert the following looping statement into for loop and do while loop

Assignment – IP (class XI)
Convert the following looping statements using for loop, while loop or do.. while loop accordingly.

1.       //to display multiples  of 7

int n=7, ctr=1;

while (ctr<=10)

{

                jTextArea1.setText(jTextArea1.getText()+” “+n*ctr);

                ctr++;

}

2.       //to display even and odd numbers in separate jTextArea controls

//from 1 to the limit given. Also count the number of even and odd numbers  

int max=0, ctr=1, odd_ctr=0, even_ctr=0;

max = Integer.parseInt(jTextField1.getText());

while (ctr<=max)

{

                If(ctr%2==0)

{

jTextArea1.setText(jTextArea1.getText()+” “+ctr);

                                even_ctr++;

                }

                else

{

jTextArea2.setText(jTextArea2.getText()+” “+ctr);

                                odd_ctr++;

                }

                ctr++;

}

3.       //to display skip counting  

int n=0, ctr=1, max=0;

max = Integer.parseInt(jTextField1.getText());

while (ctr<=max)

{

                jTextArea1.setText(jTextArea1.getText()+” “+  ++ctr);

                ctr+=3;

}