If you are good in OOPS concept then you would be able to learn core java in one month and can apply as a java fresher. if you know c++, u can easily cover core java in one month. But don’t forget it is not easy to learn everything within one month. top Senior engineers also still learning.
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JAVA Language Course Details CourseJAVAFull formJava LanguageEligibility & RequirementComputer basic knowledge and no eligibility.Duration4 monthsFee OfferedRs. 2000 to Rs.5000JAVA Language Course Details: Admission, Eligibility, Fees … www.ncertbooks.guru › java-language-course-details
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