Java Questions Set 139:
Quiz Mode
A local variable is never static
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What is the output of the following code?
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Garbage Collection can be controlled by a program
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Which keyword is used to upper bound a wildcard?
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Which of this interface is not a member of the java.io package?
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Declaring an abstract class is useful to force developers to extend the class not to use its capabilities
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Which of the following is a correct way to import a package.
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method overloading
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class A
{
public static void main(String args[])
{
byte a = 32;
int i;
byte b;
i = a << 2;
b = (byte) (a << 2);
System.out.print(i + " " + b);
}
}
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Solution:
Statement 1- An Abstract class can be extended
Statement 2-An Abstract class can be used as data type
Statement 3- A subclass of non-abstract superclass can be abstract
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