Can anyone explain how you got the answer without just running the program? I want to know how you get the answe step by step because I don't really understand the concept of swapping. Please either write on the paper or just write in chegg as specific as you can, Thank you

public class Q4 { public static void main( String [] args ) { int j, k, m, tmp; int [] a = new int [4];

for ( m = 0 ; m < a.length ; ++m ) a[m] = a.length - m;

for ( m = 0 ; m < a.length ; ++m ) for ( j = a.length - 1 ; m < j ; --j ) if ( a[j-1] > a[j] ) { tmp = a[j-1]; a[j-1] = a[j]; a[j] = tmp;

for( k = 0 ; k < a.length ; ++k ) if ( k == m || k == j ) System.out.print(a[k]); else System.out.print("*"); System.out.println(); } } }