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java Programming Glossary: ageHow do I calculate someone's age in Java? http://stackoverflow.com/questions/1116123/how-do-i-calculate-someones-age-in-java do I calculate someone's age in Java I want to return an age in years as an int in a Java.. do I calculate someone's age in Java I want to return an age in years as an int in a Java method. What I have now is the.. a Date object with the birth date public int getAge long ageInMillis new Date .getTime getBirthDate .getTime Date age new..
Sorting a collection of objects http://stackoverflow.com/questions/1206073/sorting-a-collection-of-objects public class Person private String name private Integer age private String country And a list of it List Person personList.. And I want to sort it sometimes by name sometimes by age sometimes by country. What is the easiest way to accomplish..
What is the point of the class Option[T]? http://stackoverflow.com/questions/2079170/what-is-the-point-of-the-class-optiont started studying Scala and I really love this language for the all goodies it provides like closures pattern matching.. T class in Scala. I mean I am not able to see any advanages of None over null . For example consider the code object Main.. consider the code object Main class Person name String var age int def display println name age def getPerson1 Person returns..
Overriding equals and hashCode in Java http://stackoverflow.com/questions/27581/overriding-equals-and-hashcode-in-java share improve this question The theory for the language lawyers and the mathematically inclined equals javadoc must.. public class Person private String name private int age ... public int hashCode return new HashCodeBuilder 17 31 . two.. deriving appendSuper super.hashCode . append name . append age . toHashCode public boolean equals Object obj if obj null return..
Difference in days between two dates in Java? http://stackoverflow.com/questions/3299972/difference-in-days-between-two-dates-in-java one is from report and one is current date. My snippet int age calculateDifference agingDate today Here calculateDifference..
Best way to compare objects by multiple fields? http://stackoverflow.com/questions/369512/best-way-to-compare-objects-by-multiple-fields String firstName private String lastName private String age Constructors Methods So in this example when you ask if a.compareTo..
What is the best approach for using an Enum as a singleton in Java? http://stackoverflow.com/questions/427902/what-is-the-best-approach-for-using-an-enum-as-a-singleton-in-java constructor omitted public enum Elvis INSTANCE private int age public int getAge return age and then calling Elvis.INSTANCE.getAge.. Elvis INSTANCE private int age public int getAge return age and then calling Elvis.INSTANCE.getAge and public enum Elvis.. and public enum Elvis INSTANCE private int age public static int getAge return INSTANCE.age and then calling..
How a AST for an object oriented programming language would look like? http://stackoverflow.com/questions/6376662/how-a-ast-for-an-object-oriented-programming-language-would-look-like a AST for an object oriented programming language would look like I'm reading about AST but all the samples I.. attempt is for this Java code class Person String name int age public String toString return name Is Hand written classDeclaration.. Person varDeclaration String name varDeclaration int age funcDeclaration String toString return name But I'm not quite..
Generating a JAXB class that implements an interface http://stackoverflow.com/questions/1271980/generating-a-jaxb-class-that-implements-an-interface xs element name Name type xs string xs element name Age type xs integer xs element name Job type xs string xs sequence.. xs element name Name type xs string xs element name Age type xs integer xs element name School type xs string xs sequence.. Person ... public String getName ... public int getAge ... public String getJob ... public class Kid implements Person..
Sorting using Comparator- Descending order (User defined classes) [closed] http://stackoverflow.com/questions/1946668/sorting-using-comparator-descending-order-user-defined-classes age public String getName return name public int getAge return age public String toString return name age Implement.. Person p return getName .compareTo p.getName static class AgeComparator implements Comparator Person public int compare Person.. public int compare Person p1 Person p2 int age1 p1.getAge int age2 p2.getAge if age1 age2 return 0 else if age1 age2 return..
How do I keep a scanner from throwing exceptions when the wrong type is entered? (java) http://stackoverflow.com/questions/2496239/how-do-i-keep-a-scanner-from-throwing-exceptions-when-the-wrong-type-is-entered works. Scanner in new Scanner System.in System.out.println Age while in.hasNextInt in.next What happens if you use nextLine..
Why does the JTable header not appear in the image? http://stackoverflow.com/questions/7369814/why-does-the-jtable-header-not-appear-in-the-image 22 new Double 84.81 new Boolean true String columns Name Age GPA Pass JTable table new JTable data columns JScrollPane scroll.. import java.io.File class TableImage String columns Name Age GPA Pass Any resemblance to persons living or dead is purely.. 22 new Double 84.81 new Boolean true String columns Name Age GPA Pass JTable table new JTable data columns JScrollPane scroll..
XML shredding via XSLT in Java http://stackoverflow.com/questions/8548403/xml-shredding-via-xslt-in-java would be Employee name A Name Address 123 A Street Address Age 28 Age EmploymentHistory Employment country US Comment List.. Employee name A Name Address 123 A Street Address Age 28 Age EmploymentHistory Employment country US Comment List of previous.. would be Employee name A Name Address 123 A Street Address Age 28 Age EmploymentHistory Employment country US Comment List..
The specified DSN contains an architecture mismatch between the Driver and Application. JAVA http://stackoverflow.com/questions/8895823/the-specified-dsn-contains-an-architecture-mismatch-between-the-driver-and-appli String query INSERT INTO People ID Name Surname Age Contact Location Course VALUES 1007 'Elroy' 'Smith' '33' 21366688..
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