Java Operators Questions and Answers
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Java Programming : Java Operators
This page consist of Java Operators quiz questions and answers., Java Interview questions. All questions are in the form of MCQs. You can also download the Java Operators Pdf from here.
1. Which of the following can be operands of arithmetic operators?
Answer: D. Both Boolean & Characters
Explanation:
The operand of arithmetic operators can be any of numeric or character type, But not Boolean.
2. What is the output of the program.
class operators {
public static void main(String args[])
{
int x = 8;
System.out.println(++x * 3 + "," + x);
}
}Answer: D. 27,9
Explanation:
Operator ++ has higher precedence than multiplication operator(*). Hence x is incremented to 9 than multiplied with 3 giving 27.
3. What is the output of the program.
public class Test
{
public static void leftshift(int i, int j)
{
i <<= j;
}
public static void main(String args[])
{
int i = 4, j = 2;
leftshift(i, j);
System.out.printIn(i);
}
}Answer: B. 4
Explanation:
Java only ever passes arguments to a method by value (i.e. a copy of the variable) and never by reference. Therefore the value of the variable i remains unchanged in the main method.
4. what is the output of the program ?
class Equals
{
public static void main(String [] args)
{
int x = 100;
double y = 100.1;
boolean b = (x = y);
System.out.println(b);
}
}Answer: C. Compilation fails
Explanation:
The code will not compile because in lineboolean b = (x = y);
5. What is the output of the program ?
class Test
{
public static void main(String [] args)
{
int x=20;
String sup = (x < 15) ? "small" : (x < 22)? "tiny" : "huge";
System.out.println(sup);
}
}Answer: B. tiny
Explanation:
This is an example of a nested ternary operator. The second evaluation (x < 22) is true, so the "tiny" value is assigned to sup.
6. Modulus operator, %, can be applied to which of these?
Answer: C. Both Integers and floating – point numbers
Explanation:
Modulus operator can be applied to both integers and floating point numbers.
7. Decrement operator, –, decreases value of variable by what number?
Answer: A. 1
8. Which of these statements are incorrect?
Answer: D. None
9. What is the output of this program?
class increment {
public static void main(String args[])
{
int g = 3;
System.out.print(++g * 8);
}
}Answer: C. 32
Explanation:
Operator ++ has more preference than *, thus g becomes 4 and when multiplied by 8 gives 32.
10. Which of these is not a bit-wise operator?
Answer: D. <=
Explanation:
<= is a relational operator.Are these questions helpful for you?
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