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package LernProgramm;
import java.util.Random; import java.util.Scanner;
public class FunktionenAusgelagert { public static void PrimBis100() { for (int i = 2; i <= 100; i++) { boolean istPrimZahl = true; for (int j = 2; j < i; j++) { if (i % j == 0) { istPrimZahl = false; break; } } if (istPrimZahl) { System.out.print(i + " "); } } } public static void Binaerrechner() {
try (Scanner scannerBR = new Scanner(System.in)) { System.out.print("Gebe den ersten Binärcode ein: "); String binaerCode1 = scannerBR.nextLine(); System.out.print("Gebe den zweiten Binärcode ein: "); String binaerCode2 = scannerBR.nextLine(); System.out.print("Gebe die gewünschte Operation ein (+, -, *, /): "); char operation = scannerBR.next().charAt(0);
int ergebnisBR = calculate(binaerCode1, binaerCode2, operation); System.out.println("Das Ergebnis ist: " + ergebnisBR); } }
public static int calculate(String binaryCode1, String binaryCode2, char operation) {
int decimal1 = binaryToDecimal(binaryCode1); int decimal2 = binaryToDecimal(binaryCode2);
int result = 0; switch (operation) { case '+': result = decimal1 + decimal2; break; case '-': result = decimal1 - decimal2; break; case '*': result = decimal1 * decimal2; break; case '/': result = decimal1 / decimal2; break; default: System.out.println("Ungültige Operation! Bitte wähle +, -, * oder /."); return 0; } return decimalToBinary(result); }
public static int binaryToDecimal(String binaryCode) {
int decimal = 0; for (int i = binaryCode.length() - 1; i >= 0; i--) { char currentChar = binaryCode.charAt(i); if (currentChar == '1') { decimal += Math.pow(2, binaryCode.length() - i - 1); } else if (currentChar != '0') { System.out.println("Ungültiger Binärcode! Bitte gebe nur Nullen und Einsen ein."); return 0; } } return decimal; }
public static int decimalToBinary(int decimal) { int binary = 0; int power = 0; while (decimal > 0) { binary += (decimal % 2) * (int) Math.pow(10, power); decimal /= 2; power++; } return binary; } public static void EasterEgg() { System.out.println(" _______"); System.out.println(" / \\"); System.out.println(" ( 0 0 )"); System.out.println(" \\ --- /"); System.out.println(" ------"); }
}
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