What is double word?
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Can a class be private?
What collections you have worked on? Internal working of Hashmap?
What is tree node in java?
What are reference variables in java?
Is java a security risk?
What is the default size of arraylist in java?
What is the difference between the paint() and repaint() methods in java programming?
What is treeset in java collection?
What do you mean by append?
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 difference between String and StringBuffer classes?
What is variable in java?