new element be inserted at the head of the list

Which operation is used to remove an element from a stack?

What will be the output of the following Java code?

Identify the correct way of declaring a multidimensional array in Java.

Which of these access specifiers can be used for an interface?

Which of this class contains all the methods present in the Math class?

 class A

    {

        public static void main(String args[])

        {

            int a = 1;

            if (a == 1) 

            { 

                int a = 2;

                System.out.println(a);

            }

        } 

    }

class test{

public static void main (String[] args) {

   String str="My name is Joker";

   if(str.charAt(9)>100)

   {

       System.out.println(Integer.toBinaryString(32/4));

   }

   else

   {

       System.out.println(Double.parseDouble("100"));    

   }

}

}

What is the output of the following Java code?

class output 

    {

        public static void main(String args[])

        { 

           String str1 = "  Hello World  ";

           String str2 = str1.trim();

           System.out.println("\""+str2+"\"");

        }

    }

What will be the output of the program?

class PassA
{
   public static void main(String [] args)
   {
       PassA p = new PassA();
       p.start();
   }

   void start()
   {
       long [] a1 = {3,4,5};
       long [] a2 = fix(a1);
       System.out.print(a1[0] + a1[1] + a1[2] + " ");
       System.out.println(a2[0] + a2[1] + a2[2]);
   }

   long [] fix(long [] a3)
   {
       a3[1] = 7;
       return a3;
   }
}