SS 2025

2025_Praxis_der_Programmierung/Rational.java

@@ -0,0 +1,57 @@
+class Rational{
+
+	private int num;
+	private int denom;
+
+	public Rational(){	
+		this.num = 0;
+		this.denom = 1;
+	}
+
+	public Rational(int num){
+		this.num = num;
+		this.denom = 1;
+	}
+
+	public Rational(int num, int denom){
+		this.num = num;
+		this.denom = denom;
+	}
+
+
+	public void reduce(){
+		int gcd = Gcd.gcd(this.num, this.denom);
+		this.num = this.num / gcd;
+		this.denom = this.denom / gcd;
+	}
+
+	public void extent(int extent){
+		this.num = this.num * extent;
+		this.denom = this.denom * extent;
+	}
+
+	public String toString(){
+		return this.num + "/" + this.denom;
+	}
+
+	public String toStringReduced(){
+		reduce();
+		return toString();
+	}
+
+	public Rational mult(Rational number){
+		Rational r = new Rational();
+		r.num = this.num * number.num;
+		r.denom = this.denom * number.denom;
+		r.reduce();
+		return r;
+	}
+
+	public static void main(String[] args){
+		Rational rat = new Rational(12, 24);
+		System.out.println(rat.toString());
+		System.out.println(rat.toStringReduced());
+		rat.extent(12);
+		System.out.println(rat.toString());
+	}
+}