pojo : plain old java object
dojo : http://dojotoolkit.org/ A javascript ajax framework though has nothing to do with java
EDIT 1:
eg. for pojo class:
public Customer{
private String name;
private String surname;
public String getName(){
return name;
}
public String getSurname(){
return surname;
}
public void setName(String name){
this.name=name;
}
public void setSurname(String surname){
this.surname=surname;
}
}