Tag: java

Quizzes (35) Questions (265)

Questions Related to java

Multiple choice java

The session tracking in the JSP can be done by :-

URL rewriting
Cookies
User-Authorization
Hidden Files

1,3,4 only
2,3,4 only
1,2,4 only
1,2,3,4

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Multiple choice java

Calling of which of the following method causes unpredictable results in the Servlet.

doPost()
doGet()
System.out.println()
System.exit(0);

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Multiple choice java

Some Operating Systems have a limitation on the Max Length of the URL, which are normally _______ characters.

Reveal answer Fill a bubble to check yourself

Multiple choice java

The mails can be send from the Servlet by the usage of the following :-

Simple Mail Transfer Protocol (SMTP) implementation in Java.
Java Mail API
Both a and b
Neither a and b

Reveal answer Fill a bubble to check yourself

Multiple choice java

You read the following statement in a Java program that compiles and executes.

submarine.dive(depth);

What can you say for sure?

depth must be an int
dive must be a method.
dive must be the name of an instance field.
submarine must be the name of a class
submarine must be a method.

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Multiple choice java

Given the following class definition, which of the following methods could be legally placed after the comment //Here public class Rid{ public void amethod(int i, String s){} //Here }

public void amethod(int s, String i){}
public void Amethod(int i, String s) {}
public void amethod(int i, String mystring){}
None of the above
public int amethod(int i, String s){}

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Multiple choice java

Which of the following are primitive types?

Float
None of the above
byte
String
integer

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Multiple choice java

What will happen when you attempt to compile and run the following code


public class Hope{
    public static void main(String argv[]){
        Hope h = new Hope();
    }
    protected Hope(){
        for(int i =0;
        i &lt;10;
        i ++){
            System.out.println(i);
        }
    }
}

Compilation and running with output 0 to 9
Run time error: Constructors cannot be declared protected
Compilation error: Constructors cannot be declared protected
Compilation and running with output 0 to 10
None of the above

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Multiple choice java

What is output of the above program?

Class conditional {
 public static void main(String args[]) {
  int i = 20;
  int j = 55;
  int z = 0;
  z = i &lt; j ? i : j; // ternary operator
  System.out.println("The value assigned is " + z);
 }
}

20
55
None of the above

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Multiple choice java

Which of the following statements are true?

Strings are a primitive type in Java and the StringBuffer is used as the matching wrapper type
The size of a string can be retrieved using the length property.
Strings are a primitive type in Java that overloads the + operator for concatenation
The String class is implemented as a char array, elements are addressed using the stringname[] convention

Reveal answer Fill a bubble to check yourself

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