Java
Which of t ...
Site Language: English
Українська
English
Русский
Programming Tests
Login
Sign Up
Programming Tests
Theory
Snippets
Papers
Landing
Android
Prices
FAQ
Cosmo Story
Terms and Conditions
Privacy Policy
Cookies Policy
Send Feedback
Which of the following packages are automatically imported into all Java-program?
java.io
java.util
java.lang
java.security
Explanation
Get an explanation when it's available:
Subscribe
packages
import keyword
1
(1)
Like
Login in
to like
Comment
Login in
to comment
Share
Tweet
Related Content
What will the compilation result be? package com.one; import static com.two.Two.*; public class One { int x1 = Two.tiger; //1 int x2 = tiger; //2 int x3 = com.two.Two.tiger; //3 int x4 = two.Two.tiger; //4 } Second file: package com.two; public class Two { public static int tiger = 1414; }
Is importing of the package java.awt, recorded in the program as follows: import java.awt.*; sufficient to use classes in the package java.awt.event (without naming the package)?
Given the following class: public class Main { public static void main(String[] args) { // TODO code application logic here } } Specify the full name of the package that was automatically imported.
Is the absence of a package declaration in the source code acceptable?
What is the result of the following program execution? import static java.lang.Math.*; public class StartClass { public static void main(String[] args) { System.out.println(max(1, 2)); } }
J
ava
Quiz
Login to learn Java
or
Read more about
Java Quizzes
Follow CodeGalaxy
Mobile Beta
Send Feedback
Keep exploring
Java quizzes
What will be printed out as a result of the following code execution / compilation? class A { public A() { System.out.print("A"); } } class B { public B() { System.out.print("B"); } } class C { public C() { System.out.print("C"); } } public class D extends C { private A objA = new A(); private static B objB = new B(); public D() { System.out.print("D"); } public static void main(String[] args){ new D(); } }
What will be printed out as a result of the following code execution / compilation? public class Test { private String name; Test(String name) { this.name = name; } public void test(final Test test) { test = new Test("three"); } public String toString() { return name; } public static void main(String[] args) { Test t1 = new Test("one"); Test t2 = new Test("two"); t1.test(t2); System.out.println(t2); } }
What will be printed out as a result of the following code execution / compilation? public class Test { static void m(int ... a) { System.out.println("1"); } static void m(Integer ... a) { System.out.println("2"); } public static void main(String[] args) { m(1, 2); } }
What will be printed out as a result of the following code execution / compilation? public class Test { public static void main(String[] args) { ElectricInverter inverter = new ElectricInverter(); int AC = 220; System.out.println(inverter.invert(AC)); } } class ElectricInverter { public static final int AC = ~220; public static final int DC = -110; public static final int GROUND = 0; int invert(int type) { if (type == AC) { return DC; } else if (type == DC) { return AC; } return GROUND; } }
int i = Integer.MAX_VALUE + 10; What is the result of the given line execution?
What happens after the following code is compiled and run: 01: interface TheInterface { 02: void print(); 03: } 04: 05: class TheClass implements TheInterface { 06: public void print() { 07: System.out.println("TheClass"); 08: } 09: } 10: 11: public class ClassConversion { 12: public static void main(String[] args) { 13: TheClass c = new TheClass(); 14: TheInterface i = c; 15: i.print(); 16: } 17: }
Sign Up Now
or
Subscribe for future quizzes
Login in to like
Login in to comment