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static

 
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Hi!
public class StaticTest {
static {
System.out.println("Hi there");
}
public void print() {
System.out.println("Hello");
}
public static void main(String args []) {
StaticTest st1 = new StaticTest();
st1.print();
StaticTest st2 = new StaticTest();
st2.print();
}}
When will the string "Hi there" be printed?
A - Never.
B - Each time a new instance is created.
C - Once when the class is first loaded into the Java virtual machine.
D - Only when the static method is called explicitly.
The answer is C, but what meaning have line 2? I have never seen static word alone.
thanks in advance.
 
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Hi,

The second line in your program is static initializer code.
Static initializer code gets executed during class load time
So The answer for your question is 'c'.
Hope this helps

 
Greenhorn
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Hi,
What Indu said is correct.I would like to add one more thing to it If the static keyword is removed before the block,the print statement will be executed each time a instance of that class is created and not when the class is loaded.Then answer B will be correct.
 
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The answer is C, since static initializers are executed only when the JVM loads the class.
-- Sandeep
 
Desai Sandeep
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Hi,
What Jitender says makes sense, since each time an object is created it has to initialize its instance varaibles.The instance initializer block ({}) is just like a instance variable for the object.
-- Sandeep
SCJP2, OCSD(Oracle JDeveloper), OCED(Oracle Internet Platform)
 
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