Can I convert for loop number pattern to while loop and do while loop?

I'm learning java looping, and managed to print a number one pattern using the for loop.
I tried printing the number one pattern using the while and do while loop, but had difficulty. This is my code:

for (int i = 0; i <= 7; i++) {
    for (int j = 0; j <= 4; j++) {
        if ((i == 0 && j > 1) || (i == 1 && j > 0) || (i == 2 && j >= 0) || (i == 3 && j > 1) || (i > 3 && j > 1))
            System.out.print("1");
        else
            System.out.print(" ");
    }

    System.out.println();
}

This is my while loop code:

int i = 0, j = 0;
        while (i <= 7) {
            while (j <= 4) {
                if((i == 0 && j > 1) || (i == 1 && j > 0) || (i == 2 && j >= 0) || (i == 3 && j > 1) || (i > 3 && j > 1))
                    System.out.print("1");
                else
                    System.out.print(" ");
                    
                j++;
            }
            
            System.out.println();
            i++;
        }

Yes, any for loop can be converted into a while or do-while.

For example:

for(initialize; condition_check, statement1) {
    ......
}

Here statement1 => generally this is an increment or decrement of a variable used in the condition_check

Similarly the equivalent while loop would be:

initialize;
while (condition_check) {
     .......;
     statement1;
}

So it seems that you have forgotten to initialize one of the variables. The other answer has already given you that.

This answer would help in mapping the for loop to the while loop and vice-versa.

Hope it helps.

Need to reset j counter after first j_while end

int i = 0, j = 0;
while (i <= 7)
{
//could also reset here
j=0;
    while (j <= 4)
    {
     if((i == 0 && j > 1) || (i == 1 && j > 0) || (i == 2 && j >= 0) || (i == 3 && j > 1) || (i > 3 && j > 1))
         System.out.print("1");
     else
         System.out.print(" ");
         j++;
     }
       System.out.println();
       i++;
 }