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Apache Spark has levels to it: - Level 0 You can run spark-shell or pyspark, it means you can start - Level 1 You understand the ...

Topics Covered: What are Primitive Data Types in Java? Overview of Java's 8 Primitive Data Types (byte, short, int, long, float, ...

... and Static Variables Scope and Lifetime of Variables in Java Memory Allocation for Variables Variable Shadowing and Hiding ...