1) Spring securiy, jwt, SSO in brief. 2) HashMap in Brief. 3) what is String 4) How create Immutable class 5)Diff between java 6,7 and 8 6) example of java 8 Stream API
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1) Spring securiy, jwt, SSO in brief. 2) HashMap in Brief. 3) what is String 4) How create Immutable class 5)Diff between java 6,7 and 8 6) example of java 8 Stream API