The execution of a while loop can be pictured with time on a horizontal axis and code vertical. You may enter a subset of legal java code below.

The following parts of Java are allowed:Exceptions aren't present; 2/0 gives 0 instead.
Java Code→ Time →
int x = 7;
int collatz = 0;
while (x > 1) {
    if ((x % 2) == 0) x /= 2;
    else x = ((x * 3) + 1) / 2;
    collatz += 1;
    System.out.println(x);
} 
System.out.println();
System.out.println(collatz);


                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                       
                                                                        
                                                                       

Mouse-over times to see how things change. The bottom row of the times is something like a slider, allowing you to more easily run the program.

Below is the memory and output as it looks after completing the highlighted part of the code.

Stack Memory:
typenamevalue
intx7
Program Output: