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4

A static class method can be invoked by simply using the name of the method alone.

A. True

B. False

Correct Answer :

B. False


Related Questions

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4

The break statement is required in the default case of a switch selection structure.

A. True

B. False

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4

In order to connect to a database through java program we must create _______-

A. Connection, Statement, ResultSet

B. Connection, ResultSet

C. Statement< ResultSet

D. Connection, Statement

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4

In evaluating a logical expression of type 'Boolean expression 1&& Boolean expression 2', both the Boolean expressions are not always evaluated.

A. True

B. False

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4

A method declared as static can not access non-static class members.

A. True

B. False

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4

Consider the following code snippet:
try 
{
int x=0; int y=50/x;
System.out.println("Division by zero");
}
catch(ArithmeticException e)
{
System.out.println("catch block");
}

What will be the output?

A. Error. Won't compile

B. Division by zero

C. Catch block

D. Division by zero catch block

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4

What is java -g used for?

A. Using the jdb tool

B. Executing a class with optimization turned off

C. To provided information about deprecated methods

D. Non of the above

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4

Declaring a method synchronized guarantees that the deadlock cannot occur.

A. True

B. False

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4

Given the code
String s = new String("abc");
Which of the following calls are valid?

A. s.toUpperCase()

B. s.append("xyz")

C. s.setCharAt(1<'A')

D. all of the above

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4

All methods in an abstract class must be declared abstract.

A. True

B. False

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4

A static class method can be invoked by simply using the name of the method alone.

A. True

B. False

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4

When we implement the Runnable interface, we must define the method

A. start()

B. init()

C. runnable()

D. run()

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4

Java is fully object oriented programme.

A. true

B. false

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4

executeUpdate(------------) returns ___________

A. Nothing

B. Returns a ResultSet object

C. Returns an integer value to show the no. of updated rows

D. None of the above.

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4

Which of the following string can be used as mode string for creating a RandomAccessFile object?

A. "rw"

B. "wr"

C. "0"

D. 'w''

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4

Which of the following statements are true?

A. UTF characters are all 24 bits.

B. Reader class has methods that can read integers and floats.

C. Unicode characters are all 16 bits.

D. all of the above

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4

Servlet has ___________

A. init method

B. doGet(------) method

C. All of the above methods.

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4

Which of the following will produce a value of 10 if x = 9.7?

A. floor(x)

B. abs(x)

C. rint(x)

D. round(x)

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4

The import statement is always the first no comment statement in a Java program files.

A. True

B. False

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4

With javadoc, which of the following denotes a javadoc comment?

A. //#

B. /*

C. /**

D. //**

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4

The modulus operator (%) can be used only with Integer operands.

A. True

B. False

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4

A constructor must always invoke its supper class constructor in its first statement.

A. True

B. False

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4

For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.

A. True.

B. False.

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4

What is wrong in the following class definitions? 
abstract class print { 
abstract show();
}
class Display extends print {
}

A. Nothing is wrong

B. Wrong Method show() should have a return type

C. Wrong Methods show() is not implemented in Display

D. Wrong Display does not contain any members.

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4

Frames and applets cannot be used together in the same program.

A. True

B. False

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4

Any class may be inherited by another class in the same package.

A. True

B. False

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4

Two methods cannot have the same name in Java.

A. True

B. False

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4

What is error in the following class definitions? 
abstract class xy { 
abstract sum(int x, int y) {
}
}

A. class header is not define properly

B. constructor is no defined

C. method is not defined properly

D. no error

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4

Servlet can have ___________

A. get method and post method

B. get method or post method

C. Either of the above

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4

It is an error to catch the same type of exception in two different catch blocks associated with a particular try block.

A. True

B. False

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4

Java always provides a default constructor to a class.

A. True

B. False