Input Output
practice.

What will be the output of the following Java program if input given is 'abcqfghqbcd'?

class Input_Output
{
    public static void main(String args[]) throws IOException
    {	 
        char c;
        BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));
        do
        {
            c = (char) obj.read();
      System.out.print(c);
        } while(c != 'q');
    }
}

What will be the output of the following Java program if input given is "abc'def/'egh"?

class Input_Output
{
    public static void main(String args[]) throws IOException
    {	 
        char c;
        BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));
        do 
        {
            c = (char) obj.read();
      System.out.print(c);
        } while(c!='\'');
    }
}

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    { 
         StringBuffer c = new StringBuffer("Hello");
         System.out.println(c.length());
    }
}

Which exception is thrown by read() method?

Which of these is used to read a string from the input stream?

Which of these class is used to read characters and strings in Java from console?

Which of these class is implemented by FilterInputStream class?

What will be the output of the following Java program if input given is "Hello stop World"?

class Input_Output 
{
    public static void main(String args[]) throws IOException
    {	 
        string str;
        BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));
        do
        {
            str = (char) obj.readLine();
      System.out.print(str);
        } while(!str.equals("strong"));
    }
}

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    { 
         StringBuffer c = new StringBuffer("Hello");
         StringBuffer c1 = new StringBuffer(" World");
         c.append(c1);
         System.out.println(c);
    }
}

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    { 
       StringBuffer s1 = new StringBuffer("Hello");
       s1.setCharAt(1,x);
       System.out.println(s1);
    }
}

What will be the output of the following Java program if input given is "abc'def/'egh"?

class Input_Output
{
    public static void main(String args[]) throws IOException
    {	 
        char c;
        BufferedReader obj = new BufferedReader(new InputStreamReader(System.in));
        do
        {
            c = (char) obj.read();
      System.out.print(c);
        } while(c != '\'');
    }
}

Which of these class contains the methods print() & println()?

Which of these methods can be used to writing console output?

Which of these classes are used by character streams output operations?

Which of these class is used to read from a file?

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    {
        String a="hello i love java";
        System.out.println(indexof('i')+" "+indexof('o')+" "+lastIndexof('i')+" "+lastIndexof('o') ));
    }
}

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    {
        char c[]={'a','1','b',' ','A','0'];
        for (int i = 0; i < 5; ++i)
        {
      if(Character.isDigit(c[i]))
                System.out.println(c[i]" is a digit");
            if(Character.isWhitespace(c[i]))
               System.out.println(c[i]" is a Whitespace character");
            if(Character.isUpperCase(c[i]))
               System.out.println(c[i]" is an Upper case Letter");
            if(Character.isUpperCase(c[i]))
               System.out.println(c[i]" is a lower case Letter");
            i = i + 3;
        }
    }
}

What will be the output of the following Java program?

class output
{
    public static void main(String args[])
    { 
       StringBuffer s1 = new StringBuffer("Hello");
       StringBuffer s2 = s1.reverse();
       System.out.println(s2);
    }
}

Which of these class contains the methods used to write in a file?

Which of these exception is thrown in cases when the file specified for writing is not found?