What is the range of short data type in Java?
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Java Programming · all questionsData Types and Variables
Data Types and Variables
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Is SimpleDateFormat thread safe?
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Which of these can not be used for a variable name in Java?
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Are enums are type-safe?
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Which of the below data type doesn't support overloaded methods for +,-,* and /?
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How to convert a String to a Date object?
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What is BigDecimal.ONE?
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What will be the error in the following Java code?
byte b = 50;
b = b * 50;Select an option to see the answer and solution.
Which of these values can a boolean variable contain?
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What will be the output of the following Java code?
class increment {
public static void main(String args[])
{
int g = 3;
System.out.print(++g * 8);
}
}Select an option to see the answer and solution.
If an expression contains double, int, float, long, then the whole expression will be promoted into which of these data types?
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What will be the output of the following Java program?
class dynamic_initialization
{
public static void main(String args[])
{
double a, b;
a = 3.0;
b = 4.0;
double c = Math.sqrt(a * a + b * b);
System.out.println(c);
}
}Select an option to see the answer and solution.
Which of these can be returned by the operator &?
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Which data type value is returned by all transcendental math functions?
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What is the prototype of the default constructor of this Java class?
public class prototype { }Select an option to see the answer and solution.
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]);
}
}Select an option to see the answer and solution.
Which of these literals can be contained in float data type variable?
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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));
}
}Select an option to see the answer and solution.
What will be the output of the following Java code snippet?
enum Levels
{
private TOP,
public MEDIUM,
protected BOTTOM;
}Select an option to see the answer and solution.
How to format date from one form to another?
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