What is the use of the variable classpath

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Need help with detailed answers to this questions about java

1- Write a method code defined by yourself for the sum of 3 numbers and that outputs the value. Write only the code of the Method.

2- Mention and explain 2 Methods predefined. Give an example of how you an use them?

3- What's the use of the variable "CLASSPATH"? Explain in your own words

4- What is the code "extends" used for? Explain giving an example

Reference no: EM132075949

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