大约有 8,000 项符合查询结果（耗时：0.0254秒） [XML]
What's the difference between HEAD^ and HEAD~ in Git?
...f7ed05aad843433
649bf3a42f344e71b1b5a7f562576f911a1f7423
b67d40adbbaf4f5c4898001bf062a9fd67e43368
Querying the non-existent fourth parent results in an error.
$ git rev-parse 89e4fcb0dd^4
89e4fcb0dd^4
fatal: ambiguous argument '89e4fcb0dd^4': unknown revision or path not in the working tree.
Use '-...
How to write to a file in Scala?
... File - File is a File (called Path) API that is based on a combination of Java 7 NIO filesystem and SBT PathFinder APIs.
Path and FileSystem are the main entry points into the Scala IO File API.
import scalax.io._
val output:Output = Resource.fromFile("someFile")
// Note: each write will o...
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
...
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
...
Java: how to initialize String[]?
...
I believe you just migrated from C++, Well in java you have to initialize a data type(other then primitive types and String is not a considered as a primitive type in java ) to use them as according to their specifications if you don't then its just like an empty referen...
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
...
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
...
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
share
|
improve this answer
|
follow
...
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:
...