List of reserved keywords in Java1. Abstract 2. boolean 3. break 4. byte 5. byValue 6. case 7. catch 8. char 9. class 10. const 11. continue 12. default 13. double 14. else 15. extend 16. false 17. final 18. finally 19. float 20. for 21. goto 22. if 23. implements 24. int 25. interface 26. long 27. native 28. new 29. null 30. package 31. private 32. protected 33. public 34. return 35. import 36. super 37. switch 38. synchronized 39. this 40. threadsafe 41. throw 42. transient 43. true 44. try 45. void 46. while 47. short Decimal, Octal and Hexadecimal NumbersDecimal numbers (base 10) are the ordinary numbers i.e. number having digits between 0 and 9. Example of decimal numbers: 109, 2821, 39038, 9827, 7098 etc. Octal numbers (base 8) are the numbers having digits between 0 and 7. For example, a decimal number 109 in octal notation can be written as 155 i.e. (109)10 is same as (155)8 Hexadecimal numbers (base 16) are the numbers that can be represented by 16 different digits. These digits are 0 to 9. In addition to these 10 digits, used by hexadecimal number system, six more alphabets are required. These six alphabets are represented by A to F. Alphabet 'A' is used to represent 10, 'B' to represent 11, 'C' to represent 12 and so on. Unicode character set belongs to Unicode Worldwide character standard, which is a character coding system designed to support the interchange, processing and display of diverse languages of modern world. Unicode standard contains 38,885 distinct coded characters derived from 25 supported scripts. These characters cover the principle written languages of Europe, the Middle East, the Americas, Asia and Pacifica. |

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