Miscellaneous Java
practice.

What will be the output of the following Java program?

class string_class 
{
    public static void main(String args[])
    {
        String obj = "I LIKE JAVA";   
        System.out.println(obj.charAt(3));
    } 
}

Which annotation is used to represent command line input and assigned to correct data type?

What will be the output of the following Java program?

class access
{
    public int x;
static int y;
    void cal(int a, int b)
    {
        x +=  a ;
        y +=  b;
    }        
}    
class static_specifier 
{
    public static void main(String args[])
    {
        access obj1 = new access();
        access obj2 = new access();   
        obj1.x = 0;
        obj1.y = 0;
        obj1.cal(1, 2);
        obj2.x = 0;
        obj2.cal(2, 3);
        System.out.println(obj1.x + " " + obj2.y);     
    }
}

What will be the output of the following Java snippet, if compiled and executed with command line argument "java abc 1 2 3"?

public class abc
{
   static public void main(String [] xyz)
   {
       for(int n=1;n<xyz.length; n++)
       {
          System.out.println(xyz[n]+"");
       }
   }
}

Can command line arguments be converted into int automatically if required?

What will be the output of the following Java program?

class string_class 
{
    public static void main(String args[])
    {
        String obj = "hello";
        String obj1 = "world";   
        String obj2 = obj;
        obj2 = " world";
        System.out.println(obj + " " + obj2);
    }
}

What will be the output of the following Java program?

class area 
{
    int width;
    int length;
    int height;
    area() 
    {
    width = 5;
    length = 6;
    height = 1;
    }
    void volume() 
    {
         volume = width * height * length;
    } 
}    
class cons_method 
{
    public static void main(String args[]) 
    {
        area obj = new area();
        obj.volume();
        System.out.println(obj.volume);
    } 
}

Arrays in Java are implemented as?

Which class allows parsing of command line arguments?

What will be the output of the following Java program?

class string_class 
{
    public static void main(String args[])
    {
        String obj = "hello";
        String obj1 = "world";   
        String obj2 = "hello";
        System.out.println(obj.equals(obj1) + " " + obj.equals(obj2));
    }
}

What will be the output of the following Java program, Command line exceution is done as - "java Output This is a command Line"?

class Output 
{
    public static void main(String args[]) 
    {
        System.out.print(args[3]);
    }
}

What will be the output of the following Java code snippet run as $ java Demo -length 512 -breadth 2 -h 3?

class Demo {
    @Parameter(names={"--length"})
    int length;
 
    @Parameter(names={"--breadth"})
    int breadth;
 
    @Parameter(names={"--height","-h"})
    int height;
 
    public static void main(String args[]) 
    {
        Demo demo = new Demo();
        new JCommander(demo, args);
        demo.run();
    }
 
    public void run() 
    {
        System.out.println(length+" "+ breadth+" "+height);
    }
}

Which of the following statements are incorrect?

What will be the output of the following Java program?

class string_demo 
{
    public static void main(String args[])
    {
        String obj = "I" + "like" + "Java";   
        System.out.println(obj);     
    }
}

What will be the output of the following Java program?

class Output 
{
    static void main(String args[]) 
    {    
         int x , y = 1;
         x = 10;
         if(x != 10 && x / 0 == 0)
             System.out.println(y);
         else
             System.out.println(++y);
    } 
}

Which of these can be used to differentiate two or more methods having the same name?

Which of these is the method which is executed first before execution of any other thing takes place in a program?

Which one of the following is not an access modifier?

How many arguments can be passed to main()?

Which of these statement is incorrect?