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Verzweigung

Verzweigung. Struktogramm – Normsprache - Syntax. Wenn Bedingung erfüllt dann tue    { Anweisungsblock}  sonst tue    {Anweisungsblock}. if (<Bedingung>) {    <Anweisungs-Block> } else {    <Anweisungs-Block> }. Die Farbe der Turtle wird richtungsabhängig.

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Verzweigung

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  1. Verzweigung

  2. Struktogramm – Normsprache - Syntax Wenn Bedingung erfüllt dann tue    { Anweisungsblock}  sonst tue    {Anweisungsblock} if(<Bedingung>) {   <Anweisungs-Block>} else {   <Anweisungs-Block>} Informatik Grundkurs mit Java (C) MPohlig 2005

  3. Die Farbe der Turtle wird richtungsabhängig public void zeichne() {if (t1.getOrientation()>180){     t1.setColor(Color.RED);   }    else {     t1.setColor(Color.BLUE);   }   t1.forward(40);   t1.right(60); } Übung Informatik Grundkurs mit Java (C) MPohlig 2005

  4. Die Ulam-Folge Gebe Zahl vorWiederhole      wenn Zahl gerade dann halbiere sie      sonst nimm sie mal 3 und füge 1 hinzu 3 - 10 - 5 - 16 - 8 - 4 - 2 - 1 - 4 - 2 - 1 - 4 - 2 - 1.... 3 - 10 - 5 - 16 - 8 - 4 - 2 - 1 - 4 - 2 - 1 - 4 - 2 - 1.... 23 - 70 - 35 - 106 - 53 - 160 - 80 - 40 - 20 - 10 - 5 - 16 - 8 - 4 - 2 - 1 if (i % 2 ==0){   i = i/2;}else{   i = i*3+1;} Informatik Grundkurs mit Java (C) MPohlig 2005

  5. Das Ulam-Programm import info1.*; public class Ulam {public static void main (String[] args) {int i = 23; System.out.println(i);    } } System.out.print("Ganze Zahl > 1: ");int i = Console.in.readInt();      while (i != 1){ } if (i % 2 ==0){   i = i/2;}else{   i = i*3+1;} Informatik Grundkurs mit Java (C) MPohlig 2005

  6. Das abs-Programm import info1.*;public class DemoAbs {public static void main (String[] args) {     System.out.print("Geben Sie eine ganze Zahl ein: ");int x = Console.in.readInt();if (x >= 0){       System.out.println("abs("+x+") = "+x);     }else {       System.out.println("abs("+x+") = "+(-x));     }   } } “…“ Wert einer Variablen Konkatenation Informatik Grundkurs mit Java (C) MPohlig 2005

  7. Das Maximum zweier Zahlen import info1.*;public class DemoMax2 {public static void main (String[] args) {     System.out.print("Geben a ein: ");int a = Console.in.readInt();     System.out.print("Geben b ein: ");int b = Console.in.readInt();int max;if (a>=b){       max = a;     }else{       max = b;     }     System.out.println("Max("+a+","+b+") = "+max);   } } Informatik Grundkurs mit Java (C) MPohlig 2005

  8. Das Maximum dreier eingegebener Zahlen public static void main (String[] args) {  System.out.print("Geben a ein: ");int a = Console.in.readInt();  System.out.print("Geben b ein: ");int b = Console.in.readInt();  System.out.print("Geben c ein: ");int c = Console.in.readInt();int max;if (a>=b){    max = a;  }else{    max = b;  }if (c>max){    max = c;  }  System.out.println("Max("+a+","+b+","+c+") = "+max);} Informatik Grundkurs mit Java (C) MPohlig 2005

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