Here is the complete code which works for this scenario:
class Blog {
private String title;
private String author;
private String url;
private String description;
public String getTitle() {
return title;
}
public void setTitle(String title) {
this.title = title;
}
public String getAuthor() {
return author;
}
public void setAuthor(String author) {
this.author = author;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
public String getDescription() {
return description;
}
public void setDescription(String description) {
this.description = description;
}
Blog(String title, String author, String url, String description)
{
this.title = title;
this.author = author;
this.url = url;
this.description = description;
}
@Override
public boolean equals(Object obj) {
// TODO Auto-generated method stub
if(obj instanceof Blog)
{
Blog temp = (Blog) obj;
if(this.title.equals(temp.title) && this.author.equals(temp.author) && this.url.equals(temp.url) && this.description.equals(temp.description))
return true;
}
return false;
}
@Override
public int hashCode() {
// TODO Auto-generated method stub
return (this.title.hashCode() + this.author.hashCode() + this.url.hashCode() + this.description.hashCode());
}
}
Here is the main function which will eliminate the duplicates:
public static void main(String[] args) {
Blog b1 = new Blog("A", "sam", "a", "desc");
Blog b2 = new Blog("B", "ram", "b", "desc");
Blog b3 = new Blog("C", "cam", "c", "desc");
Blog b4 = new Blog("A", "sam", "a", "desc");
Blog b5 = new Blog("D", "dam", "d", "desc");
List<Blog> list = new ArrayList();
list.add(b1);
list.add(b2);
list.add(b3);
list.add(b4);
list.add(b5);
//Removing Duplicates;
Set<Blog> s= new HashSet<Blog>();
s.addAll(list);
list = new ArrayList<Blog>();
list.addAll(s);
//Now the List has only the identical Elements
}
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