Java Questions Set 137:
Enumeration is the interface of legacy is implemented by Hashtable and Dictionary classes
Solution:
Which of the following statement will not increment the value by 1?
Solution:
Which interface abstracts the output of messages from the Apache HTTP Server (httpd)?
Solution:
Which of the following methods is a method of wrapper Integer for obtaining hash code for the invoking object?
Solution:
Which capability exists as a method in only one of the two classes when comparing java.io.BufferedWriter and java.io.FileWriter?
Solution:
class test{
public static void main (String[] args) {
int x=10,y=15;
if(~x!=10 || ~y<15)
{
x--;
}
else
{
y++;
}
System.out.println(x+" "+(--y));
}
}
Solution:
What is the output of the following Java program?
Solution:
Statement 1- Map class object uses the key to store value
Statement 2- Dictionaryclass object uses the key to store value
Statement 3- Hashtable class object uses the key to store value
Solution:
Predict the output of the following Java code.
class Abekus implements Runnable {
public
void run()
{
System.out.println("Code Run");
}
} class AbekusMain {
public
static void main(String[] args)
{
Abekus o = new Abekus();
o.start();
System.out.println("Main code run");
}
}
Solution:
class human
{
int i;
double j;
}
class child extends human
{
int k;
}
class output
{
public static void main(String args[])
{
human i = new human();
child j = new child();
Class ref;
ref = j.getClass();
System.out.print(ref.getSuperclass());
}
}
Solution:
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