What do you understand by copy constructor in java?
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How do I convert a numeric ip address like 192.18.97.39 into a hostname like java.sun.com?
What is the mapping mechanism used by java to identify IDL language?
What is internal variable?
Which sorting is best in java?
What is lazy initialization in java?
public class BatchTest { public static void main(String[] args) { Runtime run = Runtime.getRuntime(); try { Process p = run.exec("cmd start /c D:/test.bat"); System.out.println(p.exitValue()); } catch (Exception e) { e.printStackTrace(); } System.out.println("FINISHED"); } }
What is the major drawback of internal iteration over external iteration?
Explain the difference between runnable and callable interface in java?
What is the difference between declaration and definition in java?
Explain the use of javap tool.
What does null mean in java?
What are methods of a class?