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Select all modifiers that are applicable to top-level classes (not nested).
private
protected
transient
public
final
Explanation
private
and
protected
modifiers are only applicable to nested classes (member class), modifier
transient
- only to fields.
keywords
compilation
1
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Is it possible to use abstract and final modifiers during a class declaration at the same time?
Which line will the first compilation error occur in? public class Test { /* 1 */ public final static class A {} /* 2 */ static private class B {} /* 3 */ abstract static class C {} /* 4 */ static final private class D {} /* 5 */ final public abstract class E {} /* 6 */ static final abstract class F {} }
Select modifiers applicable to class fields:
Given the class: public class Clazz { public static void main(String[] args) { // input here } } which of the following definitions can be added to it so that it successfully compiles?
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); } }
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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 { 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: }
What will be the result of the following program execution? import java.util.*; public class TestFormatter { public static void main(String... args){ Integer I1 = 0; Integer I2 = -1; Integer I3 = 1; Formatter f = new Formatter(); f.format("%1$b ", I1.toString()) .format("%1$b ", I2.toString()) .format("%1$b ", I3.toString()); System.out.println(f.toString()); } }
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