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Java Programming Questions

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17. What is the difference between standard Java array and ArrayList class?
  ArrayList support dynamic arrays that can grow depending on demand. But traditional JAVA arrays are of fixed length once they are created.
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18. What is the use of JAVAAP tool?
  "javap" disassembles compiled Java files and splits out representation of the Java program. This is a useful option when the original source code is not available.
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19. In which package is the applet class located?
  Applet classes are located in "java.applet" package.
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20. What are inner classes?
  Inner classes are nested inside other class. They have access to outrĂ© class fields and methods even if the fields of outer class are defined as private.
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