Describe the process as to how substring() methodology mechanisms in java.

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Can we have 2 main methods in java class?

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Hi Friends, I am beginner in java. what i know about synchonized keyword is,If more that one 1 thread tries to access a particular resource we can lock the method using synchronized keyword. Then after that how the lock is released and how next thread access that.Please explain with example.

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Is null == null in java?

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What is the difference between the synchronized() & static synchronized()?

2 Answers   HP, SparkTG,

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What do you know about the garbate collector?

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How does split work in java?

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What is re-factoring in software?

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Suppose there is a System A which gives some output. This output is used as input by system B. The rate at which System A produces is faster than the rate at which system B consumes it. How can you improve this?

1 Answers   RBS,

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What happens when you add a double value to a string?

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what is the reason behind non static method cannot be referenced from a static Context?

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Explain Big-O notation with an example

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