Question

QUESTION 8 What is the exact output of the following nested loop? for (int row = 2; row<10; row += 4){ int column=1; while (column <= 4){ System.out.print(row - column + ""); column += 2; System.out.println(); wo- 1-153 1-1 53 All of these are correct.

Answer 1

Solution:

Given code

for(int row=2;row<10;row+=4){
   int column=1;
   while(column<=4){
   System.out.print(row-column+"");
column+=2;
   }
System.out.println();
}

out of all the 4 given options for the above code the 3rd option is correct that is

1 -1

5 3

Because

Initally row=2 and row<10 it is true then column=1 and column <=4 it is also true so it prints row-column as 2-1=1.

column increment by 2 so column value=3 and it is less than 4 so again it prints row-column as 2-3=-1

then column value incremented by 2 and becomes 5 so the condition in while loop is not true so it terminates.

System.out.println()nprints a new line. again the row value incremented by 4

row=2+4=6 and row<10 it is true then column=1 and column <=4 it is also true so it prints row-column as 6-1=5.

column increment by 2 so column value=3 and it is less than 4 so again it prints row-column as 6-3=3

then column value incremented by 2 and becomes 5 so the condition in while loop is not true so it terminates.

System.out.println()nprints a new line. again the row value incremented by 4

row=6+4=10 and the condition row<10 becomes false loop terminated.

so finally the exact output is

1 -1

5 3

Tested output image is attached below

C. C:\Windows\system32\cmd.exe - O X C:\Users\Kumar Reddi\Desktop>javac op.java 'C:\Users\Kumar Reddi\Desktop>java op 1 -1 5 3 C:\Users\Kumar Reddi\Desktop>