Option B (2 only) is the correct program fragment as it correctly structures the nested loops to generate the desired output.
The correct program fragment that will produce the given output is option B (2 only). Let's break down the code to understand why:
```java
for (int i = 1; i <= 6; i++) {
for (int k = 1; k <= i - 1; k++)
System.out.print("-");
System.out.print(2 * i);
for (int k = 1; k <= 6 - i; k++)
System.out.print("-");
System.out.println();
}
```
In this program, the outer loop controls the rows (i) and the inner loops control the columns (k). The first inner loop prints the leading hyphens, then it prints the doubled value of i (2 * i), and the second inner loop prints the trailing hyphens. This structure correctly produces the desired output pattern.
Option A has a syntax error in the for loop condition (`for (int i = 1 ; <= 6 ; i++)`). Option C has a similar error (`for (int i = 1 ; <= 6 ; i++)`). Option D includes option 1, which has a syntax error, so it is incorrect.
Therefore, the correct answer is B. Option 2 alone produces the specified output.
The question probable may be:
Which of the following program fragments will produce this output? (ignore spacing.)
2 - - - - -
- 4 - - - -
-- 6 - - -
- - - 8 - -
- - - - 10 -
- - - - - 12
1. for (int i = 1 ; <= 6 ; i ++ )
{
for ( int k = 1 ; k<= 6 ; k++ )
if ( k == i)
System.out.print (2* k ) ;
else
System.out.print ( "-") ;
Syste,.out.print () ;
}
2. for ( int i = 1 ; i <= 6 ; i++ )
{
for ( int k = 1 ; k<= i -1 ; k++ )
System.out.print ( "-");
System.out.print ( 2 * i ) ;
for ( int k = 1 ; k<= 6 - i ; k++ )
System.out.print ( "-");
System.out.print ln( );
}
3. . for (int i = 1 ; <= 6 ; i ++ )
{
for ( int k = 1 ; k<= i -1 ; k++ )
System.out.print ( "-");
System.out.print ( 2 * i ) ;
for ( int k = 1 ; k<= 6 ; k++ )
System.out.print ( "-");
System.out.print ln( );
}
A, 1 only
B. 2 only
C. 3 only
D, 1 and 2 only
E. 1 , 2 and 3 only