Join
Blogs
Questions
Videos
Tags
Members
Search
 
Home
 
Create your own blog, earn points and get popular!

Boolean
Megha's picture

What will happen when you compile and run the following code?

Submitted by Megha on Sat, 09/04/2010 - 18:24
3.5
Your rating: None Average: 3.5 (2 votes)
  1. public class BooleanDemo {
  2.     public static void main(String args[]){
  3.         Boolean bObj = new Boolean("Hello World!");
  4.         System.out.println(bObj);
  5.     }
  6. }
a. Program will not compile
b. Program will throw runtime error
c. Program will print false
d. Program will print true

Answer:
»
Rahimv's picture

Convert String to Boolean example

Submitted by Rahimv on Sat, 08/28/2010 - 22:45
0
Your rating: None
  1. /*
  2.  * Convert String to Boolean example. Program to convert Java
  3.  * String object to Boolean object.
  4.  */
  5.  
  6. public class StringToBoolean {
  7.  
  8.  public static void main(String args[]){
  9.  
  10.   //new String object
  11.   String str = new String("true");
  12.  
  13.   //Use Boolean(String) constructor
  14.   Boolean bObj1 = new Boolean(str);
  15.  
»
Rahimv's picture

Convert Boolean to String example

Submitted by Rahimv on Sat, 08/28/2010 - 22:43
0
Your rating: None
  1. /*
  2.  * Convert Boolean to String example. Program to convert Java
  3.  * Boolean object to String object.
  4.  */
  5.  
  6. public class BooleanToString {
  7.  
  8.  public static void main(String args[]){
  9.  
  10.   //new Boolean object
  11.   Boolean bObj = new Boolean("true");
  12.  
  13.   //to convert Boolean to String use toString method of Boolean wrapper class
  14.   String strBValue = bObj.toString();
  15.  
»
Rahimv's picture

Convert Boolean to boolean primitive example

Submitted by Rahimv on Sat, 08/28/2010 - 22:43
0
Your rating: None
  1. /*
  2.  * Convert Boolean to boolean primitive example. Program to convert Java
  3.  * Boolean object to boolean primitive data type.
  4.  */
  5.  
  6. public class BooleanToboolean {
  7.  
  8.  public static void main(String args[]){
  9.  
  10.   //new Boolean object
  11.   Boolean bObj = new Boolean("true");
  12.  
  13.   //to convert Boolean to boolean use booleanValue method of Boolean wrapper class
»
Rahimv's picture

Convert boolean primitive to Boolean Object example

Submitted by Rahimv on Sat, 08/28/2010 - 22:42
0
Your rating: None
  1. /*
  2.  * Convert boolean primitive to Boolean Object example. Program to convert Java
  3.  * boolean primitive data type to Boolean object.
  4.  */
  5.  
  6. public class booleanPrimitiveToBoolean {
  7.  
  8.  public static void main(String args[]){
  9.  
  10.   //new boolean primitive
  11.   boolean b = false;
  12.  
  13.   //Use Boolean(boolean b) constructor
  14.   Boolean bObj1 = new Boolean(b);
  15.  
»
Syndicate content