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Reverse engineering from an APK file to a project
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There are two useful tools which will generate Java code (rough but good enough) from an unknown APK file.
Download dex2jar tool from dex2jar.
Use the tool to convert the APK file to JAR:
$ d2j-dex2jar.bat demo.apk
dex2jar demo.apk -> ./demo-dex2jar.jar
Once the JA...
How do I copy an object in Java?
... do that, read at least what Joshua Bloch has to say about it in Effective Java.
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How to set a Timer in Java?
...ss that.
Setting a timer
First you need to create a Timer (I'm using the java.util version here):
import java.util.Timer;
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Timer timer = new Timer();
To run the task once you would do:
timer.schedule(new TimerTask() {
@Override
public void run() {
// Your database code here
}
},...
How to use the toString method in Java?
...rintln("mystr.toString: " + mystr.toString());
output:- mystr.toString: [Ljava.lang.String;@13aaa14a
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Best XML parser for Java [closed]
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I think you should not consider any specific parser implementation. Java API for XML Processing lets you use any conforming parser implementation in a standard way. The code should be much more portable, and when you realise that a specific parser has grown too old, you can replace it with an...
How can I initialise a static Map?
How would you initialise a static Map in Java?
42 Answers
42
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How should I use try-with-resources with JDBC?
...ing an additional wrapper class?
package com.naveen.research.sql;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
public abstract class PreparedStatementWrapper implements AutoCloseable {
protected PreparedStatement stat...
Get size of an Iterable in Java
I need to figure out the number of elements in an Iterable in Java.
I know I can do this:
10 Answers
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Is it possible to create a File object from InputStream
Is there any way to create a java.io.File object from an java.io.InputStream ?
7 Answers
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How do you specify a byte literal in Java?
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You can use a byte literal in Java... sort of.
byte f = 0;
f = 0xa;
0xa (int literal) gets automatically cast to byte. It's not a real byte literal (see JLS & comments below), but if it quacks like a duck, I call it a duck.
What you can't ...