Java Control Flow statements

Which of these are selection statements in Java?

• if()

• for

• continue

• break

Which of the following loops will execute the body of loop even when condition controlling the loop is initially false?

• for

• while

• do..while

• None of the above

What will be the output of the following Java program?

class selection_statements

{

public static void main(String args[])

{

int var1 = 5;

int var2 = 6;

if ((var2 = 1) == var1)

System.out.print(var2);

else

System.out.print(++var2);

} }

• 1

• 2

• 3

• 4

What will be the output of the following Java program?

class comma_operator

{

public static void main(String args[])

{

int sum = 0;

for (int i = 0, j = 0; i < 5 & j < 5; ++i, j = i + 1)

sum += i;

System.out.println(sum);

} }

• 5

• 6

• 14

• None of the above

Predict the output?

class jump_statments

{

public static void main(String args[])

{

int x = 2;

int y = 0;

for ( ; y < 10; ++y)

{

if (y % x == 0)

continue;

else if (y == 8)

break;

else

System.out.print(y + " ");

} } }

• 1 3 5 7

• 2 4 6 8

• 1 3 5 7 9

• 1 2 3 4 5 6 7 8 9

Which of the statement test only for equality?

• if

• switch

• if & switch

• None of the above

What will be the output of the following code?

int x,y;

x=15;

y=20;

if(x>15)

{

if(y>15)

{

System.out.println("y is "+y);

}

}

else

{

System.out.println("X is "+x);

}

• Error

• Y is 20

• X is 15

• No output

What will be the output of the following program.

class WeekDays

{

public static void main(String s[])

{

int day = 4;

switch(day)

{

case 1:

System.out.println("Monday");

case 2:

System.out.println("Tuesday");

case 3:

System.out.println("Wednesday");

case 4:

System.out.println("Thursday");

case 5:

System.out.println("Friday");

default:

System.out.println("Weekend");

break;

}

}

}

• Thursday

• Compilation Error

• Thursday

  Friday

  Weekend

• Runtime error

What will be the output of the following program.

class WeekDays

{

public static void main(String s[])

{

int day = 7;

switch(day)

{

case 1:

System.out.println("Monday");

case 2:

System.out.println("Tuesday");

case 3:

System.out.println("Wednesday");

case 4:

System.out.println("Thursday");

case 5:

System.out.println("Friday");

}

}

}

• No Output

• Compilation Error

• Sunday

• Runtime error

What will be the output of the following program?

class ForSample

{

public static void main(String s[])

{

int i = 0;

for(;i <= 5; i++ )

{

System.out.println("i = " + i );

}

System.out.println("i after the loop = " + i );

}

}

• i = 0

  i = 1

  i = 2

  i = 3

  i = 4

  i = 5

  i after the loop = 6

• i = 0

  i = 1

  i = 2

  i = 3

  i = 4

  i = 5

  i = 6

• Compilation Errors

• i = 0

  i = 1

  i = 2

  i = 3

  i = 4

  i = 5