Java Control Flow

Q 1: 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

Q 2: In java, can only test for equality, where as can evaluate any type of the Boolean expression.

A switch, if
B if, switch
C if, break
D continue, if

Q 3: 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

Q 4: 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

Q 5: Determine output:

public class Test{
        public static void main(String args[]){
                int i, j;
                for(i=1, j=0;i<10;i++) j += i;
                System.out.println(i);
        }
}

A 10
B 11
C 9
D 20

Q 6: 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

Q 7: What will be the value of y after execution of switch statement?

public class Test{
        public static void main(String[] args){
                int x = 3, y = 4;
                switch(x + 3){
                        case 6: y = 0;
                        case 7: y = 1;
                        default: y += 1;
                }
        }
}

A 1
B 2
C 3
D 4

Q 8: What is the printout of the following switch statement?

char ch = 'a';  
switch (ch){
      case 'a':
      case 'A': System.out.print(ch); break;
      case 'b':
      case 'B': System.out.print(ch); break;
      case 'c':
      case 'C': System.out.print(ch); break;
      case 'd':
      case 'D': System.out.print(ch);
}

A abcd
B aa
C a
D ab

Q 9: How many times will the following code print "Welcome to Examveda"?

int count = 0;
do {
      System.out.println("Welcome to Examveda");
      count++;
} while (count < 10);

A 8
B 9
C 10
D 11

Q 10: 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.

Q 11: 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

Q 12: 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

Q 13: What is the value of a[1] after the following code is executed?

int[] a = {0, 2, 4, 1, 3};
for(int i = 0; i < a.length; i++)
      a[i] = a[(a[i] + 3) % a.length];

A 0
B 1
C 2
D 3

Q 14: What will be the result of compiling and runnig the following code:

public class Test{
      public static void main(String... args) throws Exception{
            Integer i = 34;
            int l = 34;
            if(i.equals(l)){
                  System.out.println("true");
            }else{
                  System.out.println("false");
            }
      }
}

A true
B false
C Compiler error
D None of these

Q 15: 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;
            }
      }
}

A 0
B 1
C 2
D 1 2

Q 16: 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);
      }
}

A 0
B 1
C 2
D The program does not compile because of statement "i=++i;"

Q 17: What will be the output?

public class Test{
      public static void main(String args[]){ 
            int i = 1;
            do{
                  i--;
            }while(i > 2);
            System.out.println(i);
      }
}

A 1
B 2
C -1
D 0

Q 18: 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;

Q 19: What will be the result?

1.  int i = 10;
2.  while(i++ <= 10){
3.        i++;
4.  }
5.  System.out.print(i);

A 10
B 11
C 12
D 13

⛪ Programming Language > Java Programming Language

Q 1: 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); } }

Q 2: In java, can only test for equality, where as can evaluate any type of the Boolean expression.

Q 3: 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 ); } }

Q 4: 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?

Q 5: Determine output:
public class Test{ public static void main(String args[]){ int i, j; for(i=1, j=0;i<10;i++) j += i; System.out.println(i); } }

Q 6: 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"); } } }

Q 7: What will be the value of y after execution of switch statement?
public class Test{ public static void main(String[] args){ int x = 3, y = 4; switch(x + 3){ case 6: y = 0; case 7: y = 1; default: y += 1; } } }

Q 8: What is the printout of the following switch statement?
char ch = 'a'; switch (ch){ case 'a': case 'A': System.out.print(ch); break; case 'b': case 'B': System.out.print(ch); break; case 'c': case 'C': System.out.print(ch); break; case 'd': case 'D': System.out.print(ch); }

Q 9: How many times will the following code print "Welcome to Examveda"?
int count = 0; do { System.out.println("Welcome to Examveda"); count++; } while (count < 10);

Q 10: 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; } } }

Q 11: Which of the following for loops will be an infinite loop?

Q 12: 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); } } } }

Q 13: What is the value of a[1] after the following code is executed?
int[] a = {0, 2, 4, 1, 3}; for(int i = 0; i < a.length; i++) a[i] = a[(a[i] + 3) % a.length];

Q 14: What will be the result of compiling and runnig the following code:
public class Test{ public static void main(String... args) throws Exception{ Integer i = 34; int l = 34; if(i.equals(l)){ System.out.println("true"); }else{ System.out.println("false"); } } }

Q 16: 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); } }

Q 17: What will be the output?
public class Test{ public static void main(String args[]){ int i = 1; do{ i--; }while(i > 2); System.out.println(i); } }

Q 18: 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. }

Q 19: What will be the result?
1. int i = 10; 2. while(i++ <= 10){ 3. i++; 4. } 5. System.out.print(i);