Answer / javamasque

@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (obj == null || obj.getClass() != this.getClass()) {
return false;
}

Employee emp = (Employee) obj;
return id == emp.id
&& (firstName == emp.firstName
|| (firstName != null && firstName.equals(emp.getFirstName())))
&& (lastName == emp.lastName || (lastName != null && lastName .equals(emp.getLastName())));

}// equals method ends

@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((firstName == null) ? 0 :frstName.hashCode());
result = prime * result + id;
result = prime * result
+ ((lastName == null) ? 0 : lastName.hashCode());
return result;

}// hashCode method ends

Hi, This is ravi i have a question like this i have string "UNDERSTAND" now i want to count the letters how many times it occures.i.e from the above string the out put should be like this U-1,N-2,D-2,E-1,R-1,S-1,T-1,A-1. how can i achieve this Thnaks in advance for your response ..

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