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Eclipse RCP开发桌面程序 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...能够得到Eclipse的底层支持。更重要的是，我们可以利用Java创建象Eclipse这么漂亮的桌面程序。
我相信，在未来的几年里，RCP一定会变得非常流行。使用RCP，我们可以开发界面象Eclipse这样漂亮的桌面程序，比如医院管理...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
...o serialize object with enums. The other case is where class has fields of java.util.Optional class. In this case the following exception is thrown: java.io.NotSerializableException: java.util.Optional
...
What is the difference between == and equals() in Java?
...ich states that equal objects must have equal hash codes. (docs.oracle.com/javase/7/docs/api/java/lang/…)
– Abhijeet
Jul 6 '16 at 13:20
...
Apache Commons equals/hashCode builder [closed]
... .isEquals();
} else{
return false;
}
}
and here with Java 7 or higher (inspired by Guava):
@Override
public int hashCode(){
return Objects.hash(name, length, children);
}
@Override
public boolean equals(final Object obj){
if(obj instanceof Bean){
final Bean ot...
The performance impact of using instanceof in Java
...
Modern JVM/JIC ..COuld you please mention from which java version these optimiszation have been covered?
– Ravisha
Dec 3 '10 at 9:50
146
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IntelliJ Organize Imports
...e an Organize Imports feature similar to that in Eclipse?
What I have is a Java file with multiple classes missing their imports. Example:
...
Creating runnable JAR with Gradle
...manifest, but that would be done the same way.
See http://docs.oracle.com/javase/tutorial/deployment/jar/manifestindex.html
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What does Class mean in Java?
...ific type.
Reference about Generics and Wildcards: http://docs.oracle.com/javase/tutorial/java/generics/wildcards.html
Reference about Class object and reflection (the feature of Java language used to introspect itself): https://www.oracle.com/technetwork/articles/java/javareflection-1536171.html
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Cleanest way to build an SQL string in Java
...statement. Also, you can extract bind values in their order using jooq.org/javadoc/latest/org/jooq/Query.html#getBindValues(), or named bind values by their names using jooq.org/javadoc/latest/org/jooq/Query.html#getParams(). My answer just contains a very simplistic example... I'm not sure if this ...
What is the difference between “Class.forName()” and “Class.forName().newInstance()”?
... Demo demo = (Demo) clazz.newInstance();
}
}
As explained in its javadoc, calling Class.forName(String) returns the Class object associated with the class or interface with the given string name i.e. it returns test.Demo.class which is affected to the clazz variable of type Class.
Then, c...