JAVA J2EE Interview Questions [924 Questions]

  1. Nested and Inner ClassesWhat is the need of nested and inner classes in Java? Explain where they are useful?
  2. Java Program to Count Number of Files50,000 HTML files are in a folder on a windows machine. Among them, content of some files
    (not the file names) contain the sentence "SocioMaC-Jus' Follow!". Write a Java program to count the number of such files.
  3. Count Number of Files50,000 HTML files are in a folder on a windows machine. Among them, content of some files
    (not the file names) contain the sentence "SocioMaC-Jus' Follow!". Write a Java program to count the no. of such files.
  4. DataOutputWhat is the basic functionality of DataOutput interface in java?
  5. Run Time Exceptionswhat do exception mean in java ? what type of run time exceptions?
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