Blog

What is the output of the following code?public class Test { public static void main(String[] args) { new Person().printPerson(); new Student().printPerson(); }}class Student extends Person { @Override public String getInfo() { return “Student”; }}class Person { public String getInfo() { return “Person”; } public void printPerson() { System.out.println(getInfo()); }}

Which method can be used to read a whole line from the file?

What exception type does the following program throw?public class Test { public static void main(String[] args) { Object o = null; System.out.println(o.toString()); }}

Which of the following is the correct statement to return a string from an array a of characters?

Jamie, while meeting with her primary care physician, states that she has been experiencing frequent panic attacks brought on by feelings of anxiety in social situations. The feelings of fear and anxiety are strongest whenever she is alone in a large crowd or in public spaces where there is no easily identifiable exits in case of an emergency. Jamie could be exhibiting symptoms of which of these disorders

Suppose TestSimpleCircle and SimpleCircle in Listing 9.1 are in two separate files named TestSimpleCircle.java and SimpleCircle.java, respectively. What is the outcome of compiling TestsimpleCircle.java and then SimpleCircle.java?

What exception type does the following program throw?public class Test { public static void main(String[] args) { int[] list = new int[5]; System.out.println(list[5]); }}

Assume Cylinder is a subtype of Circle. Analyze the following code:Circle c = new Circle (5);Cylinder c = cy;

What is displayed by the following code? public static void main(String[] args) { String[] tokens = “Welcome to Java”.split(“o”); for (int i = 0; i < tokens.length; i++) { System.out.print(tokens[i] + " "); } }

What is the output of the following code?String s = “University”;s.replace(“i”, “ABC”);System.out.println(s);