Java Control Flow - Quiz

Q: Determine output:

public class Test{
        public static void main(String args[]){
                int i; 
                for(i = 1; i < 6; i++){ 
                        if(i > 3) continue ; 
                }
                System.out.println(i); 
        }
}

A. 2
B. 3
C. 4
D. 6

Correct Option: D
Remarks:

Explanation: 6

Q: What will be the output of the following program?

public class Test{
        public static void main(String args[]){
                int i = 0, j = 5 ;
                for( ; (i < 3) && (j++ < 10) ; i++ ){
                        System.out.print(" " + i + " " + j );
                }
                System.out.print(" " + i + " " + j );
        }
}

A. 0 6 1 7 2 8 3 8
B. 0 6 1 7 2 8 3 9
C. 0 6 1 5 2 5 3 5
D. Compilation Error

Correct Option: A
Remarks:

Explanation: 0 6 1 7 2 8 3 8

Q: Consider the following program written in Java.

class Test{
        public static void main(String args[]){
                int x=7; 
                if(x==2); // Note the semicolon
                System.out.println("NumberSeven");
                System.out.println("NotSeven");
        }
}

What would the output of the program be?

A. NumberSeven NotSeven
B. NumberSeven
C. NotSeven
D. Error

Correct Option: A
Remarks:

Explanation: NumberSeven NotSeven

Q: What will be the output?

public class Test{
        public static void main(String[] args){
                int x=10, y=0;
                if(x && y){
                        System.out.print("TRUE");
                }
                else{
                        System.out.print("FALSE");
                }
        }
}

A. FALSE
B. TRUE
C. Compilation Error
D. Runtime Error

Correct Option: C
Remarks:

Explanation: Compilation Error

Q: Choose the correct statement in context of the following program code.

public class Test{
      public static void main(String[] args){
            double sum = 0;
            for(double d = 0; d < 10;){
                  d += 0.1;
                  sum += sum + d;
            }
      }
}

A. The program has a compile error because the adjustment is missing in the for loop.
B. The program has a compile error because the control variable in the for loop cannot be of the double type.
C. The program runs in an infinite loop because d<10 would always be true.
D. The program compiles and runs fine.

Correct Option: D
Remarks:

Explanation: The program compiles and runs fine.

Q: Which of the following for loops will be an infinite loop?

A. for(; ;)
B. for(i=0 ; i<1; i--)
C. for(i=0; ; i++)
D. All of the above

Correct Option: D
Remarks:

Explanation: All of the above

Q: What will be the result of the following code?

public class Test{
      static public void main(String args[]){ //line 2
            int i, j;
            for(i=0; i<3; i++){
                  for(j=1; j<4; j++){
                        i%=j;
			System.out.println(j);
		  }
	    }
      }
}

A. 1 2 3 1
B. 1 2 3 2
C. Repeatedly print 1 2 3 and cause infinite loop.
D. Compilation fails because of line 2

Correct Option: C
Remarks:

Explanation: Repeatedly print 1 2 3 and cause infinite loop.

Q: What all gets printed when the following program is compiled and run.

public class Test{
      public static void main(String args[]){ 
            int i, j=1;
            i = (j>1)?2:1;
            switch(i){
                  case 0: System.out.println(0); break;
                  case 1: System.out.println(1);
                  case 2: System.out.println(2); break;
                  case 3: System.out.println(3); break;
            }
      }
}

B. 1
C. 2
D. 1 2

Correct Option: D
Remarks:

Explanation: 1 2

Q: What all gets printed when the following program is compiled and run?

public class Test{
      public static void main(String args[]){
            int i=0, j=2;
            do{
                  i=++i;
                  j--;
            }while(j>0);
            System.out.println(i);
      }
}

B. 1
C. 2
D. The program does not compile because of statement "i=++i;"

Correct Option: C
Remarks:

Explanation: 2

Q: Which option, inserted at line 4, produces the output 12?

1. public class Test{
2.       public static void main(String [] args){
3.             int x = 0;
4.             // insert code here
5.             do{ } while(x++ < y);
6.             System.out.println(x);
7.       }
8. }

A. int y = x;
B. int y = 10;
C. int y = 11;
D. int y = 12;

Correct Option: C
Remarks:

Explanation: int y = 11;

Java Control Flow - Quiz

Determine output:
public class Test{ public static void main(String args[]){ int i; for(i = 1; i < 6; i++){ if(i > 3) continue ; } System.out.println(i); } }

What will be the output of the following program?
public class Test{ public static void main(String args[]){ int i = 0, j = 5 ; for( ; (i < 3) && (j++ < 10) ; i++ ){ System.out.print(" " + i + " " + j ); } System.out.print(" " + i + " " + j ); } }

Consider the following program written in Java.
class Test{ public static void main(String args[]){ int x=7; if(x==2); // Note the semicolon System.out.println("NumberSeven"); System.out.println("NotSeven"); } }
What would the output of the program be?

What will be the output?
public class Test{ public static void main(String[] args){ int x=10, y=0; if(x && y){ System.out.print("TRUE"); } else{ System.out.print("FALSE"); } } }

Choose the correct statement in context of the following program code.
public class Test{ public static void main(String[] args){ double sum = 0; for(double d = 0; d < 10;){ d += 0.1; sum += sum + d; } } }

Which of the following for loops will be an infinite loop?

What will be the result of the following code?
public class Test{ static public void main(String args[]){ //line 2 int i, j; for(i=0; i<3; i++){ for(j=1; j<4; j++){ i%=j; System.out.println(j); } } } }

What all gets printed when the following program is compiled and run?
public class Test{ public static void main(String args[]){ int i=0, j=2; do{ i=++i; j--; }while(j>0); System.out.println(i); } }

Which option, inserted at line 4, produces the output 12?
1. public class Test{ 2. public static void main(String [] args){ 3. int x = 0; 4. // insert code here 5. do{ } while(x++ < y); 6. System.out.println(x); 7. } 8. }

Java Control Flow - Quiz

Determine output: public class Test{ public static void main(String args[]){ int i; for(i = 1; i < 6; i++){ if(i > 3) continue ; } System.out.println(i); } }

What will be the output of the following program? public class Test{ public static void main(String args[]){ int i = 0, j = 5 ; for( ; (i < 3) && (j++ < 10) ; i++ ){ System.out.print(" " + i + " " + j ); } System.out.print(" " + i + " " + j ); } }

Consider the following program written in Java. class Test{ public static void main(String args[]){ int x=7; if(x==2); // Note the semicolon System.out.println("NumberSeven"); System.out.println("NotSeven"); } } What would the output of the program be?

What will be the output? public class Test{ public static void main(String[] args){ int x=10, y=0; if(x && y){ System.out.print("TRUE"); } else{ System.out.print("FALSE"); } } }

Choose the correct statement in context of the following program code. public class Test{ public static void main(String[] args){ double sum = 0; for(double d = 0; d < 10;){ d += 0.1; sum += sum + d; } } }

Which of the following for loops will be an infinite loop?

What will be the result of the following code? public class Test{ static public void main(String args[]){ //line 2 int i, j; for(i=0; i<3; i++){ for(j=1; j<4; j++){ i%=j; System.out.println(j); } } } }

What all gets printed when the following program is compiled and run? public class Test{ public static void main(String args[]){ int i=0, j=2; do{ i=++i; j--; }while(j>0); System.out.println(i); } }

Which option, inserted at line 4, produces the output 12? 1. public class Test{ 2. public static void main(String [] args){ 3. int x = 0; 4. // insert code here 5. do{ } while(x++ < y); 6. System.out.println(x); 7. } 8. }

Determine output:
public class Test{ public static void main(String args[]){ int i; for(i = 1; i < 6; i++){ if(i > 3) continue ; } System.out.println(i); } }

What will be the output of the following program?
public class Test{ public static void main(String args[]){ int i = 0, j = 5 ; for( ; (i < 3) && (j++ < 10) ; i++ ){ System.out.print(" " + i + " " + j ); } System.out.print(" " + i + " " + j ); } }

Consider the following program written in Java.
class Test{ public static void main(String args[]){ int x=7; if(x==2); // Note the semicolon System.out.println("NumberSeven"); System.out.println("NotSeven"); } }
What would the output of the program be?

What will be the output?
public class Test{ public static void main(String[] args){ int x=10, y=0; if(x && y){ System.out.print("TRUE"); } else{ System.out.print("FALSE"); } } }

Choose the correct statement in context of the following program code.
public class Test{ public static void main(String[] args){ double sum = 0; for(double d = 0; d < 10;){ d += 0.1; sum += sum + d; } } }

What will be the result of the following code?
public class Test{ static public void main(String args[]){ //line 2 int i, j; for(i=0; i<3; i++){ for(j=1; j<4; j++){ i%=j; System.out.println(j); } } } }

What all gets printed when the following program is compiled and run?
public class Test{ public static void main(String args[]){ int i=0, j=2; do{ i=++i; j--; }while(j>0); System.out.println(i); } }

Which option, inserted at line 4, produces the output 12?
1. public class Test{ 2. public static void main(String [] args){ 3. int x = 0; 4. // insert code here 5. do{ } while(x++ < y); 6. System.out.println(x); 7. } 8. }