Set 15

Multiple Choice Question

QID: 
342

Which of these combinations of switch expression types and case label value types are legal within a switch statement?

Select 1 option

A. switch expression of type int and case label value of type char.
B. switch expression of type float and case label value of type int.
C. switch expression of type byte and case label value of type float.
D. switch expression of type char and case label value of type byte.
E. switch expression of type boolean and case label value of type boolean.

Multiple Choice Question

QID: 
341

What is the result of executing the following fragment of code:

boolean b1 = false; 
int i1 = 2;
 int i2 = 3; 
if (b1 = i1 == i2){   
System.out.println("true"); } 
else{   
System.out.println("false");
 }

Select 1 option

A. Compile time error. 
B. It will print true 
C. It will print false 
D. Runtime error. 
E. It will print nothing. 

Multiple Choice Question

QID: 
340

Which of the following statements are true?

Select 3 options 

A. The condition expression in an if statement can contain method calls. 
B. If a and b are of type boolean, the expression (a = b) can be used as the condition expression of an if statement. 
C. An if statement can have either an 'if' clause or an 'else' clause. 
D. The statement : if (false) ; else ; is illegal. 
E. Only expressions which evaluate to a boolean value can be used as the condition in an if statement. 

Multiple Choice Question

QID: 
339

What will the following program print?

class Test{       
public static void main(String args[]){      
int k = 9, s = 5;      
switch(k){         
default :         
if( k == 10) { s = s*2; }         
else{            
s = s+4;            
break;         }         
case 7 : s = s+3;      }      
System.out.println(s);   } }

Select 1 option

A. 5 
B. 9 
C. 12 
D. It will not compile. 

Multiple Choice Question

QID: 
338

Which of the following will not give any error at compile time and run time?

Select 4 options

A. if (8 == 81) {}
B. if (x = 3) {} // assume that x is an int
C. if (true) {}
D. if (bool = false) {} //assume that bool is declared as a boolean
E. if (x == 10 ? true:false) { } // assume that x is an int

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