Java Programming Language

Operator in Java

⛪ Programming Language > Java Programming Language

Test your understanding of Java operators with these multiple choice questions. Learn about the different types of operators in Java and how they are used in expressions. Take the quiz now! ➲ Operator in Java - Quiz

Q 1: What will be the value of "x" after execution ? 
int x = 0, y = 0 , z = 0 ;
x = (++x + y-- ) * z++;

  • A -2
  • B -1
  • C 0
  • D 1

Q 2: 
int ++a = 100 ; 
System.out.println( ++a ) ;
What will be the output of the above fraction of code ?

  • A 100
  • B Displays error as ++a is not enclosed in double quotes in println statement
  • C Compiler displays error as ++a is not a valid identifier
  • D None of these

Q 3: What is the output of the following program ? 
class Numbers{
        public static void main(String args[]){
                int a=20, b=10;
                if((a < b) && (b++ < 25)){
                        System.out.println("This is any language logic");
                }
                System.out.println(b); 
        }
}

  • A 12
  • B 11
  • C 10
  • D Compilation Error

Q 4: Select from among the following character escape code which is not available in Java.

  • A \t
  • B \r
  • C \a
  • D \\

Q 5: What will be the output? 
if(1 + 1 + 1 + 1 + 1 == 5){
        System.out.print("TRUE");
}
else{
        System.out.print("FLASE");
}

  • A TRUE
  • B FALSE
  • C Compiler Error
  • D None of these

Q 6: Which of the following is the correct expression that evaluates to true if the number x is between 1 and 100 or the number is negative?

  • A 1 < x < 100 || x < 0
  • B ((x < 100) && (x > 1)) || (x < 0)
  • C ((x < 100) && (x > 1)) && (x < 0)
  • D (1 > x > 100) || (x < 0)

Q 7: what will be the output? 
public class Test{

      public static void main(String args[]){

            System.out.print(""=="");

            System.out.print(" ");

            System.out.print("A"=="A");

            System.out.print(" ");

            System.out.print("a==A");

      }

}

  • A "==" A"=="A a==A
  • B true true false
  • C true true a==A
  • D Compilation Fails

Q 8: What will be the output? 
public class Test{
      public static void main(String args[]){
            int a = 42;
            double b = 42.25;
            System.out.print((a%10)+" "+(b%10));
      }
}

  • A 42 42.5
  • B 2 2.5
  • C 4.2 4.225
  • D 2 4.225

Q 9: What will be the output after compiling and running following code? 
1. public class Test{
2.       public static void main(String... args){
3.             int x =5;
4.             x *= 3 + 7;
5.             System.out.println(x);
6.       }
7. }

  • A 22
  • B 50
  • C 10
  • D Compilation fails with an error at line 4

Q 10: Determine output: 
public class Test{
      public static void main(String... args){
            int a=5 , b=6, c=7;
            System.out.println("Value is "+ b + c);
            System.out.println(a + b + c);
            System.out.println("String " + (b+c));
      }
}

  • A Value is 67 18 String 13
  • B Value is 13 18 String 13
  • C Value is 13 18 String
  • D Compilation fails

Q 11: What will be the output for the below code? 
class Test{
        public void display(int x, double y){
                System.out.println(x+y);
        } 
        public double display(int p, double q){
                return (p+q);
        }
        public static void main(String args[]){
                Test test = new Test();
                test.display(4, 5.0);
                System.out.println(test.display(4, 5.0));
        }
}

  • A 9.0 9.0
  • B 9 9
  • C Compilation Error
  • D None of these

Q 12: Determine output: 

public class Test{
      static int i = 5;
      public static void main(String... args){
            System.out.println(i++);
            System.out.println(i);
            System.out.println(++i);
            System.out.println(++i+i++);
      }
}

  • A 6 6 6 16
  • B 6 7 6 16
  • C 5 6 7 16
  • D 5 6 6 16