Question 1 of 25
Hints left: 3
Q1
What will be the output of the following Java program, if we run as "java main_arguments 1 2 3"? class main_arguments { public static void main(String [] args) { String [][] argument = new String[2][2]; int x; argument[0] = args; x = argument[0].length; for (int y = 0; y < x; y++) System.out.print(" " + argument[0][y]); } }
Q2
How to format date from one form to another?
Q3
What will be the output of the following Java code? class char_increment { public static void main(String args[]) { char c1 = 'D'; char c2 = 84; c2++; c1++; System.out.println(c1 + " " + c2); } }
Q4
What will be the output of the following Java statement? class output { public static void main(String args[]) { double a, b,c; a = 3.0/0; b = 0/4.0; c=0/0.0; System.out.println(a); System.out.println(b); System.out.println(c); } }
Q5
Which of the following are legal lines of Java code? 1. int w = (int)888.8; 2. byte x = (byte)100L; 3. long y = (byte)100; 4. byte z = (byte)100L;
Q6
How is Date stored in database?
Q7
What will be the output of the following Java code? class conversion { public static void main(String args[]) { double a = 295.04; int b = 300; byte c = (byte) a; byte d = (byte) b; System.out.println(c + " " + d); } }
Q8
What will be the output of the following Java code? class A { final public int calculate(int a, int b) { return 1; } } class B extends A { public int calculate(int a, int b) { return 2; } } public class output { public static void main(String args[]) { B object = new B(); System.out.print("b is " + b.calculate(0, 1)); } }
Q9
BigDecimal is a part of which package?
Q10
What will be the output of the following Java code? class booloperators { public static void main(String args[]) { boolean var1 = true; boolean var2 = false; System.out.println((var1 & var2)); } }
Q11
Which method returns the elements of Enum class?
Q12
What will be the output of the following Java program, Command line execution is done as - "java Output command Line 10 A b 4 N"? class Output { public static void main(String args[]) { System.out.print((int)args[2] * 2); } }
Q13
Literal can be of which of these data types?
Q14
Which one is a valid declaration of a boolean?
Q15
What is the replacement of joda time library in java 8?
Q16
What will be the output of the following Java code snippet? enum Levels { private TOP, public MEDIUM, protected BOTTOM; }
Q17
If we try to add Enum constants to a TreeSet, what sorting order will it use?
Q18
All the variables of interface should be?
Q19
What is the base of BigDecimal data type?
Q20
Which of these literals can be contained in float data type variable?
Q21
What is the numerical range of a char data type in Java?
Q22
What is the range of byte data type in Java?
Q23
How to get difference between two dates?
Q24
What will be the output of the following Java code? class area { public static void main(String args[]) { double r, pi, a; r = 9.8; pi = 3.14; a = pi * r * r; System.out.println(a); } }
Q25
An expression involving byte, int, and literal numbers is promoted to which of these?