1. Which method gives the index position of an element in Stack data structure? 1. indexOf() 2. search() 3. elementAt() 4. elementIndexOf() 2. The removeRange(3, 8) removes all the elements in Vector 1. from 3 to 8 2. from 3 to 7 3. from 2 to 8 4. from 2 to 7 3. What is …
1. What is the index position of element 10 in the Stack? Stack st = new Stack(); st.push(10); st.push(20); st.push(30); 1. 0 2. 1 3. 2 4. 3 2. With what you can fill up the blank so that the output is Hyderabad. List cities = new ArrayList(); cities.add(“Hyderabad”); ——- abc = cities.get(0); System.out.println(abc); 1. …
1. Which interface is not in the Collection hierarchy? 1. List 2. Set 3. Map 4. Queue 2. What is the output of the following snippet of code? Hashtable ht = new Hashtable(); StringBuffer sb1 = new StringBuffer(“hello”); ht.put(sb1, “sir”); Enumeration e = ht.keys(); while(e.hasMoreElements()) { Object obj1 = e.nextElement(); Object obj2 = ht.get(obj1); System.out.println(obj1 …
1. Following snippet of code String citiesArray[] = { “Hyderabad”, “Chennai”, “Vizag”, “Delhi” }; List citiesList = Arrays.asList(citiesArray); for(String temp : citiesList) { System.out.println(temp); } 1. raises compilation error 2. compiles but throws exception 3. compiles, executes and prints all the elements 4. last element is not printed 2. Observe, the following snippet of code. …
1. compareTo(Object) belongs to which class? 1. Collections 2. Comparator 3. Comparable 4. Arrays 2. singletonList(Object) method is defined in? 1. class ArrayList 2. interface List 3. interface Collection 4. class Collections 3. When a thread is started with start() method, in which state it exists? 1. born state 2. runnable state 3. …
Test Your Java Tricky Questions Question 1 on Test Your Java Tricky Questions: What is the output of the following code? class Parent { public Parent() { this.display(); } public void display() { System.out.println(“In parent display method”); } } public class Child extends Parent { public Child() { this.display(); } public void display() { System.out.println(“In …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exam preparation. The …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. int …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. Java's …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. Test …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. Test …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. Test …
Total 8 tests are available under "Test Your Java" series. Test-1, Test-2, Test-3, Test-4, Test-5, Test-6 are basic level questions and Test-7, Test-8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for …
Test Your Java 7 and Test Your Java 8 are advanced questions. Answers are given for each question at the end of each test. Answering these questions increases your knowledge in Java and helps you a lot when you appear for interviews. Solving these basic questions is your first step for Certification Exams preparation. Test …
