Rewrite using for loop and do while loop in java

Question

int I=1, j=2;
while (I<=25)
{
I++;
j=j+2;
}

Answer 1

int i=1,j=2;
do
{
i++;
j+=2;
}while(i<=25);

Answer 2

int i=1,j=2;
for(i;i<=25;++i)
{
j+=2;
}

Answer 3

int i=1, j=2;
for( ;i<=25; i++, j+=2);

Answer 4

int j = 2;
int end = 25;
j += 2 * (end + 1);