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Published on Dec 02, 2015

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1.

Understanding Java

Imran Kidwai & Ben Zusmann
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2.

Variables

  • Int (Integers)
  • Double (Decimals)
  • Boolean (True or False)
  • String (various inputs)
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3.

Variables

  • must be declared
  • local scope (in method)
  • assigned literals
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4.

Arithmetic Operators

  • add (+)
  • subtract (-)
  • multiply (*)
  • divide (/)
  • percent (%)
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5.

Arithmetic Operators

  • * and /
  • %
  • + and -
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6.

String Concatenation

Combining multiple variables
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7.

newstring = "beginning Java " + "is fun!"

                 Output: Beginning Java is fun!               
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8.

Comments

  • Start with //
  • Allow for non-programmable notes
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9.

Untitled Slide

10.

Functions (Methods)

a routine that computes some value, given information
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11.

FUNCTIONvALUE = FUNCTIONnAME(ARGUMENTlIST);

            MATH.FUNCTIONTYPE(ARGUMENT)           
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12.

tYPES OF fUNCTIONS

  • abs (Absolute Value)
  • sqrt (square root)*
  • pow (exponentation)*
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13.

sqrt-'double' variables

pow-two arguments

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14.

Java Scanner Object

  • allows run-time editing
  • found in Java API Package
  • java.util.Scanner
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15.

Input Statements

  • import statement
  • import java.util.Scanner
  • constructor
  • Scanner myScanner = new Scanner(Program.in)
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16.

Print vs Println

  • println-new line after
  • print-continues on line
  • \n-blank line at location
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