Sytem.out.println(" "); this code what mean

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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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Can you compile java into exe?

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What is use of jpa?

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Is lambda cheaper than ec2?

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What is data encapsulation?

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What is the current code for the Java 5 code class Root { ?

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how we can export all the contacts and messages from nokia mobile to other mobile or pc? (pls answer quickly)

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Is lambda functional programming?

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How long can a lambda function run?

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What is the difference between Object Code and ByteCode? Why do people keep saying that bytecode is like the intermediate of source and object code? Also, which is better/commonly used and why? Please keep in mind that I am a beginner, please keep all terminology fairly simple. Thanks!

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What is map and flatmap?

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