What is jboss in java?

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What are the advantages of java 8’s date and time api over old date api and joda time api?

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i have make jar file but when i click in this file then arr swhow "no faund main class" plese help me in this problem becose i want to make a jar file as a dxdcutable file

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What is dao in java?

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What is savepoint in java?

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What is war file in java?

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public class Dog { private int weight; public int getweight(){ return weight; } public void SetWeight(int newWeight){ if (newWeight > 0){ weight = newWeight; } } } public class TestDog { public static void main(String[] args) { Dog d = new Dog(); System.out.println("Dog d's weight is " + d.getWeight()); d.setWeight(42); System.out.println("Dog d's weight is " + d.getWeight()); d.setweight(-42); System.out.println("Dog d's weight is " + d.getWeight()); } } class dog is compiled but there is an error in class TestDog when compiled and the error is with dot notations. I want to kmow why there is error in testdog class when compiled.

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How do I run a project in netbeans?

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What is aop java?

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What is java bean class?

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Why do we only use the main method to start a program?

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Why there are no global variables in java?

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