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top -c command in linux to filter processes listed based on processname
...he o key and then type in a filter expression. For example, to monitor all java processes use the filter expression COMMAND=java. You can add multiple filters by pressing the key again, you can filter by user with the u key, and you can clear all filters with the = key.
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What does “S3 methods” mean in R?
...ric-function OO.
This is different from most programming languages, like Java, C++ and
C#, which implement message-passing OO. With message-passing, messages
(methods) are sent to objects and the object determines which function
to call. Typically, this object has a special appearance in the...
How do I discover memory usage of my application in Android?
...s, thus needing to start killing needed processes like services. For pure Java applications, this should be of little use, since the Java heap limit is there in part to avoid one app from being able to stress the system to this point.
Going lower-level, you can use the Debug API to get raw kernel-...
.gitignore is ignored by Git
...sh removing files from .gitignore file."
// For example, if you want the .java type file to be tracked again,
// The command should be:
// git add -f *.java
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How to use JUnit to test asynchronous processes
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If you use a CompletableFuture (introduced in Java 8) or a SettableFuture (from Google Guava), you can make your test finish as soon as it's done, rather than waiting a pre-set amount of time. Your test would look something like this:
CompletableFuture<String> fu...
Hibernate: “Field 'id' doesn't have a default value”
...LT CHARSET=latin1;
Here's the Entity
package com.keyes.jpa;
import java.io.Serializable;
import javax.persistence.*;
import java.math.BigInteger;
/**
* The persistent class for the parkingsupplier database table.
*
*/
@Entity
@Table(name = "supplier")
public class supplier implements Se...
What is the difference between atomic / volatile / synchronized?
...p a thread that is running forever without any use and Stopping a specific java thread.
AtomicInteger
private AtomicInteger counter = new AtomicInteger();
public int getNextUniqueIndex() {
return counter.getAndIncrement();
}
The AtomicInteger class uses CAS (compare-and-swap) low-level CPU op...
How can I find the latitude and longitude from address?
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It throws the "java.io.IOException service not available"
– Kandha
Aug 26 '10 at 13:02
3
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Converting many 'if else' statements to a cleaner approach [duplicate]
...OGG(); break;
}
}
And have a look at the Stack Overflow question Java - Convert String to enum on how to convert Strings to enums.
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How to set environment variables in Jenkins?
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I just needed to set up JAVA_HOME environment variable and this answer was the one that helped me.
– Sandoval0992
Jan 11 '19 at 10:24
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