Why is Java Vector (and Stack) class considered obsolete or deprecated?

Why is Java Vector (and Stack) class considered obsolete or deprecated?

java vector stack deprecated obsolete

java

How to declare or mark a Java method as deprecated?

java deprecated

java

Java: Why is the Date constructor deprecated, and what do I use instead?

java date deprecated

java

java.net.URLEncoder.encode(String) is deprecated, what should I use instead?

java url network-programming deprecated

java

Is the buildSessionFactory() Configuration method deprecated in Hibernate

java hibernate configuration deprecated bootstrapping

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Is it wrong to use Deprecated methods or classes in Java?

java methods deprecated

java

Observer is deprecated in Java 9. What should we use instead of it?

java java-8 deprecated observer-pattern java-9

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Why is Cloneable not deprecated?

java java-8 deprecated cloneable

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Suppress deprecated import warning in Java

java import deprecated suppress-warnings

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Deprecated ManagedQuery() issue

java android deprecated

java

Android LocationServices.FusedLocationApi deprecated

java android deprecated android-fusedlocation

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Should I use JavaDoc deprecation or the annotation in Java?

java annotations javadoc deprecated

java

Android Deprecated Annotation is deprecated, what's the replacement?

java android annotations deprecated

java

MockitoJUnitRunner is deprecated

java mockito deprecated

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Why was "new Date(int year, int month, int day)" deprecated?

java date deprecated

java