What classes of exceptions, caught by a catch clause?

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Can we use a default constructor of a class even if an explicit constructor is defined?

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What is difference between checked and unchecked exception in java?

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What is currentthread()?

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Can we write a class without main method in java?

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What are constructors in java?

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Hi Every One I Have Small Doubt Please answer This???????????????????????????? I Want to use AbstractList class methods(java.util.AbstractList) My Program is import java.util.*; class DemoOne extends AbstractList { public static void main(String[] args) { AbstractList a=new DemoOne();//This One is Correct?? DemoOne a1=new DemoOne();//This One is Correct?? Both Are Not Working System.out.println("Hello World!"+a); System.out.println("Hello World!"+a1); } } Error IS: DemoOne.java:2: DemoOne is not abstract and does not override abstract method get(int) in java.util.AbstractList class DemoOne extends AbstractList AnyOne can Please Provide The Solution????????????????????????? Plzzzzzzz

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Are arrays immutable in java?

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Explain about the security aspect of java?

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Difference difference paint() and paintcomponent()?

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What do you mean by thread safe?

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What are predicates in java 8?

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