What is the result of expression 5.45 + "3,2"?

a)The double value 8.6 b)The string ""8.6" c)The long value 8. d)The String "5.453.2" Ans :d

What are the values of x and y ?

x = 5; y = ++x; Ans : x = 6; y = 6

What are the values of x and z?

x = 5; z = x++;
Ans : x = 6; z = 5

1) What are the programming constructs?

Ans: a) Sequential
b) Selection -- if and switch statements
c) Iteration -- for loop, while loop and do-while loop

2) class conditional {
public static void main(String args[]) {
int i = 20;
int j = 55;
int z = 0;
z = i < j ? i : j; // ternary operator
System.out.println("The value assigned is " + z);
}
}
What is output of the above program?

Ans: The value assigned is 20

The switch statement does not require a break.

a)True
b)False
Ans: b.

conditional operator is otherwise known as the ternary operator.

a)True
b)False
Ans: a.

The while loop repeats a set of code while the condition is false.

a)True
b)False
Ans:b.