Question

JAVA programing language:

What is printed when the following code is executed?

int columns;

int rows;

for(rows = 1; rows < 2; ++rows) {

for(columns = 1; columns < 3; ++columns) {

System.out.print("x");

}

System.out.println():

}

select one:

A)

xx

B)

xxx

xxx

C)

x

x

D)

xx

xx

xx

Answer 1

Answer is (A) -xx

EXPLANATION-

WHEN THE FIRST FOR LOOP EXECUTES THAT IS

//

for(row=1; row<2,++rows)

Then row will get value 1 then the control will go to the condition i.e (row<2) which is true, then the control will come to the next for loop i.e-

for(column =1; column<3;++columns)

Column is initialised with value 1 then it will check the condition (column<3) .since column is having a value 1 then (1<3) i.e the condition is true,then the control will go the next line i.e-

System.out.print("x");

So it will print -x

Then the value of column will incremented to 2, then again it will check the condition (2<3) which is true then again print -x ,

then again the value of column will be incremented to 3 and then check the condition (3<3) which evaluates to false so, the control will jump to the next line which iwill change the line to a new line and then jump to the first for loop and the value of rows will be incremented to 2 and check the condition i.e (2<2) which evaluates to false and the control will go out of that block.

So, the OUTPUT is- xx