1. What is the output ?
 public class Test {
     public static void main(String... args) {
        int x =5;
        x *= 3 + 7;
       System.out.println(x);
   }
 }

2. Which of the following is true?
 A. A class that is abstract may not be instantiated.
 B. The final keyword indicates that the body of a method is to be found elsewhere. 
 C. A static variable indicates there is only one copy of that variable
 D. A method defined as private indicates that it is accessible to all other classes in the same package

3. Which of these statements are true?
 A. For each try block there must be at least one catch block defined.
 B. A try block may be followed by any number of finally blocks.
 C. A try block must be followed by at least one finally or catch block.
 D. If both catch and finally blocks are defined, catch block must precede the finally block.

4. What is the output? 
public class Test {
   int squares = 21;
   public static void main(String[] args) {
      new Test().go();
   }
   void go() {
     incr(++squares);
     incr(++squares);
    System.out.println(squares);
  }
  void incr(int squares) { squares += 10; }
}

5. Will the following code compile?
abstract interface IService {
   String company="ABC Ltd";
   void service();
   int getId();
}

6. What is the output?
public class TestParent { 
    static {
      System.out.print(" parent-static");
    }
}
public class Test extends TestParent{ 
    static {
      System.out.print(" child-static");
    }
    {
      System.out.print(" child-instance");
    }
    public static void main(String args[]) { 
      System.out.print(" main");
      Test t = new Test();
    }
}

7.  What is the output?
public static void main(String[] args) {
    Set set = new TreeSet();
    set.add("7");
    set.add("9");
    set.add(9);
    Iterator iter = set.iterator();
    while (iter.hasNext()) {
      System.out.print(iter.next() + " ");      
    }
  }