Answer / niranjanravi

there is no sizeOf() in java to find the size of the object

Answer / m!r@

public class FindSizeOfObject{
public static void main(String[] args) throws Exception{

Runtime obj = Runtime.getRuntime();
System.out.println(obj.totalMemory() - obj.freeMemory());
}
}

Answer / lachha g

you can use Instrumentation class.

use long getObjectSize(Object objectToSize) method.
It returns amount of storage consumed by the specified object.
package Test;

import java.lang.instrument.Instrumentation;

public class ObjectSize {
private int x;
private int y;

ObjectSize(int x, int y){
this.x=x;
this.y=y;
}


public static void main(String [] args) {
ObjectSize obj= new ObjectSize(2,4);
System.out.println(Test.getObjectSize(obj));
}
}
class Test {
private static Instrumentation instrumentation;

public static void premain(String args, Instrumentation inst) {
instrumentation = inst;
}

public static long getObjectSize(Object o) {
return instrumentation.getObjectSize(o);
}
}

Answer / sitaram

we don't have any method for to identify the size of object
in java.

Answer / suvarna

getObjectSize(Object objectToSize)
Returns an implementation-specific approximation
of the amount of storage consumed by the specified object.

What is an inner class in java?

0 Answers  

Can we access a database using applets?

2 Answers   Hewitt,

What is a package in java? List down various advantages of packages.

0 Answers  

What is a serializable interface?

4 Answers  

Interface A { String test(); } Interface B { int test(); } Create a class AB which must implements both A & B interfaces.

17 Answers   Hewitt,

Is 0 a real number?

0 Answers  

To the class members how can we provide security?

1 Answers   Aspire,

Why hashcode is used in java?

0 Answers  

What does singleton mean in java?

0 Answers  

Is java an open source?

0 Answers  

We are seeing so many videos/audios as many web sited. But question is these videos or audios are stored in Databases ( Oracle, Mysql, Sybase,... ) or stored any file directory from there they will give the link for that? Pls explain and give sample code to achieve this one? Thanks, Seenu.

0 Answers   Symphony,

When would you use a static class?

0 Answers