What is java lang noclassdeffounderror?

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What is type inference? Is type inference available in older versions like java 7 and before 7 or it is available only in java se 8?

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What is stateless object in java?

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Write a program for the following topic - switch case,looping using fuction calling,nesting,console input output. Aim- to print a menu:- 1-series 2-single value. Each menu having sub menu armstrong or perfect.

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What is messaging queue in java?

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What are jpa repositories?

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How can I swap two variables without using a third variable?

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What is an entity in java?

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How should I format my code? How should I comment my code?

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What is mq in java?

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what is the serialization?

2 Answers   TCS,

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Can java program run without jdk?

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