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What access modifiers are allowed for the class if he is the only one in the file?
public
protected
package-private(default)
private
all abovementioned
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access modifiers
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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?
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What is the result of the following code compilation and execution? public class Test extends A { public int i = 1; public static void main(String... args) { System.out.print(new Test().i); System.out.print(new A().i); System.out.print( ((A)new Test()).i ); } } class A { public int i = 2; }
Which access modifiers allow access to the field/method of a public class to other classes that are in the same package?
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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); } }
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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; } }
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