Question on Collections & Generics for SCJP 5.0

programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums

this forum made possible by our volunteer staff, including ...

Marshals:

Campbell Ritchie
Tim Cooke
Ron McLeod
paul wheaton
Jeanne Boyarsky

Sheriffs:

Paul Clapham
Devaka Cooray

Saloon Keepers:

Tim Holloway
Roland Mueller
Himai Minh

Bartenders:

Other threads similar to Question on Collections & Generics for SCJP 5.0

Beginning Java

TreeSet question

3 replies

Java in General

why CompareTo exists when we already have equals method

6 replies

Beginning Java

[Comparable] problem with ording classes

9 replies

Programmer Certification (OCPJP)

why ClasscastException????

2 replies

Programmer Certification (OCPJP)

generics

3 replies

Programmer Certification (OCPJP)

Treeset ordering

4 replies

Programmer Certification (OCPJP)

Treeset adding not based on equals method ?

6 replies

Programmer Certification (OCPJP)

how to easily sort the same TreeSet few times?

4 replies

Java in General

Problem in implementing a TreeSet

5 replies

Java in General

TreeMap equals check

4 replies

Programmer Certification (OCPJP)

TreeSet - Comparable

4 replies

Beginning Java

TreeSet uses compareTo

14 replies

Beginning Java

class design problem

16 replies

Java in General

Object HashCode in HashMap

2 replies

Beginning Java

using `instanceof`with an "object" parameter

3 replies

Beginning Java

TreeSet not allowing the addition of a unique object, yet the equals() method is not being called

3 replies

JavaFX

Notify ObservableList Listeners of a Change in One of Its Elements

3 replies

Java in General

How do I efficiently print the elements of a Set in descending order?

2 replies

Beginning Java

Polymorphic calls

5 replies

Lambdas and Streams

java streams supposed to be better performance, but my test says otherwise.

5 replies

Java in General

Sorting an array?

4 replies

Programmer Certification (OCPJP)

Section 9 Mock test questions

0 replies

Java in General

instanceof problems

1 reply

Beginning Java

HashSet and equals()

7 replies

Programmer Certification (OCPJP)

TreeSet contains method doesn't work for me??????

6 replies

Java in General

How do I write a compareTo/compare method- with equals, canEqual, and hashCode methods?

13 replies

Java in General

TreeSet and compareTo Java 5

2 replies

Java in General

Problem with TreeSet and own class [Solved]

7 replies

Programmer Certification (OCPJP)

compareTo()

6 replies

Programmer Certification (OCPJP)

What's wrong with this code? Why I am able to add duplicates with this code.

5 replies

Java in General

Comparator

27 replies

Programmer Certification (OCPJP)

How to implement Comparable

2 replies

Programmer Certification (OCPJP)

Doubt in Comparable interface

2 replies

Beginning Java

compareTo

5 replies

Programmer Certification (OCPJP)

I need Y the ClaaCastException is coming?

4 replies

Programmer Certification (OCPJP)

Sort Order, Duplicacy and ClassCastException in TreeSet

6 replies

Java in General

Using java.util.HashSet for Custom Class

8 replies

Programmer Certification (OCPJP)

que on equals()

5 replies

Java in General

TreeSet won't sort

5 replies

Programmer Certification (OCPJP)

Doubt in K&S book SCJP 5

2 replies

Programmer Certification (OCPJP)

TreeSet Question

4 replies

Java in General

Generic class declarations

5 replies

Beginning Java

comparable comparator

24 replies

Java in General

I want to use a TreeSet, but my compare method isn't consistent with equals.

8 replies

Programmer Certification (OCPJP)

Doubt about Trees Implementations

2 replies

Programmer Certification (OCPJP)

equals() method in String and wrapper classes..

5 replies

Programmer Certification (OCPJP)

collections framework doubt

3 replies

Programmer Certification (OCPJP)

Overriding equals() and hashCode()

3 replies

Programmer Certification (OCPJP)

Confusion on Hashcodes and equals

1 reply

Beginning Java

Comparator giving compiler error

2 replies

Other threads similar to Question on Collections & Generics for SCJP 5.0

TreeSet question

why CompareTo exists when we already have equals method

[Comparable] problem with ording classes

why ClasscastException????

generics

Treeset ordering

Treeset adding not based on equals method ?

how to easily sort the same TreeSet few times?

Problem in implementing a TreeSet

TreeMap equals check

TreeSet - Comparable

TreeSet uses compareTo

class design problem

Object HashCode in HashMap

using `instanceof`with an "object" parameter

TreeSet not allowing the addition of a unique object, yet the equals() method is not being called

Notify ObservableList Listeners of a Change in One of Its Elements

How do I efficiently print the elements of a Set in descending order?

Polymorphic calls

java streams supposed to be better performance, but my test says otherwise.

Sorting an array?

Section 9 Mock test questions

instanceof problems

HashSet and equals()

TreeSet contains method doesn't work for me??????

How do I write a compareTo/compare method- with equals, canEqual, and hashCode methods?

TreeSet and compareTo Java 5

Problem with TreeSet and own class [Solved]

compareTo()

What's wrong with this code? Why I am able to add duplicates with this code.

Comparator

How to implement Comparable

Doubt in Comparable interface

compareTo

I need Y the ClaaCastException is coming?

Sort Order, Duplicacy and ClassCastException in TreeSet

Using java.util.HashSet for Custom Class

que on equals()

TreeSet won't sort

Doubt in K&S book SCJP 5

TreeSet Question

Generic class declarations

comparable comparator

I want to use a TreeSet, but my compare method isn't consistent with equals.

Doubt about Trees Implementations

equals() method in String and wrapper classes..

collections framework doubt

Overriding equals() and hashCode()

Confusion on Hashcodes and equals

Comparator giving compiler error