Week6Chap4-III - Chapter 4 Control Statements in Java...

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Janaka Balasooriya CSE 110, Arizona State University Chapter 4 Control Statements in Java Selection
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Selection : Quick Recap Janaka Balasooriya CSE 110, Arizona State University
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Janaka Balasooriya CSE 110, Arizona State University One Way Selection expression statement Java code (syntax): if (logical expression) statement (s) Example: int myNumber; Scanner keyboard = new Scanner (System.in); myNumber =keyboard.nextInt(); if(myNumber < 0) Sytem.out.println (“a negative number”); True False
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Janaka Balasooriya CSE 110, Arizona State University Two way selection expression statement Java code (syntax): if (expression) statement else statement Example: int myNumber; Scanner keyboard = new Scanner (System.in); myNumber; =keyboard.nextInt(); if(myNumber < 0) Sytem.out.println (“a negative number”); else Sytem.out.println (“a positive number”); statement True False
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Using Selection: Examples Janaka Balasooriya CSE 110, Arizona State University
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Selection Example: Wages.java //******************************************************************** // Wages.java Java Foundations // // Demonstrates the use of an if-else statement. //******************************************************************** import java.text.NumberFormat; import java.util.Scanner; public class Wages { //----------------------------------------------------------------- // Reads the number of hours worked and calculates wages. //----------------------------------------------------------------- public static void main (String[] args) { final double RATE = 8.25; // regular pay rate final int STANDARD = 40; // standard hours in a work week Scanner scan = new Scanner (System.in); double pay = 0.0; (more…)
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4.2 – Wages.java System.out.print ("Enter the number of hours worked: "); int hours = scan.nextInt(); System.out.println ();
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  • Fall '08
  • KIM
  • Control table, Janaka Balasooriya

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