46. How to convert a String to a Date object?

1. 1. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().format();

   
   
   

   2. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.format(new Date());

   
   
   

   3. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().parse();

   
   
   

   4. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.parse(new Date());

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   SimpleDateFormat takes a string containing pattern. sdf.parse converts the String to Date object.

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47. How to convert Date object to String?

1. 1. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.format(new Date());

   
   
   

   2. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.parse(new Date());

   
   
   

   3. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().parse();

   
   
   

   4. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().format();

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   SimpleDateFormat takes a string containing pattern. sdf.format converts the Date object to String.

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48. How to convert Date object to String?

1. 1. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.format(new Date());

   
   
   

   2. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      simple.parse(new Date());

   
   
   

   3. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().parse();

   
   
   

   4. SimpleDateFormat simple = new SimpleDateFormat(“yyyy-mm-dd”);
      new Date().format();

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   SimpleDateFormat takes a string containing pattern. sdf.format converts the Date object to String.

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49. How to format date from one form to another?

1. 1. DateFormat

   
   
   

   2. SimpleFormat

   
   
   

   3. DateConverter

   
   
   

   4. SimpleDateFormat

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   SimpleDateFormat can be used as:
   

   
   Date now = new Date();
   SimpleDateFormat date = new SimpleDateFormat ("yyyy-mm-dd'T'hh:MM:ss");
   String nowStr = date.format(now);
   System.out.println("Current Date: " + );
   

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50. What is the output of below code snippet?
    

    
    public class Output 
    {
    	public static void main(String args[]) 
            {
    		BigDecimal z = new BigDecimal("23.43");
    		BigDecimal br = new BigDecimal("24");
    		BigDecimal bres = z.add(new BigDecimal("450.23"));
    		System.out.println("Add: "+bres);
     
    		MathContext mc = new MathContext(2, RoundingMode.DOWN);
    		BigDecimal bdecMath = z.add(new BigDecimal("450.23"), mc);
    		System.out.println("Add using MathContext: "+bdecMath);
    	}
    }
    

1. 1. Compilation failure

   
   
   

   2. Runtime exception

   
   
   

   3. Add: 684.66
      Add using MathContext: 6.8E+2

   
   
   

   4. Add 6.8E+2
      Add using MathContext: 684.66

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   add() adds the two numbers, MathContext provides library for carrying out various arithmetic operations.

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