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@19h
Created January 12, 2012 13:03
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BubbleShit
import java.util.Random;
//import java.util.Integer;
public class Sortierverfahren {
/**
* @param args
*/
public static int[] genIntArray(int length) {
int[] a = new int[length];
//Random generator = new Random();
int i = 0;
for (i = 0; i!= length; i++) {
a[i] = (i);
}
return a;
}
public static void PrintIntArray(String name, int length) {
Random generator = new Random();
int i = 0;
System.out.print("int[] " + name + " = {");
for (i = 1; i!= length+1; i++) {
System.out.print(generator.nextInt(length));
if (i < length)
System.out.print(", ");
if (i % 15 == 0)
System.out.print("\n");
}
System.out.print("};\n\n");
}
public static int[] bubble(int[] x) {
int i = 0;
boolean fertig = false;
boolean sorted = false;
while (!fertig) {
sorted = false;
for (i = 1; i<x.length; ++i) {
if (x[i] < x[i-1]) {
int temp = x[i-1]; x[i-1] = x[i]; x[i] = temp; sorted = true;
}
}
if (!sorted) {
fertig = true;
}
}
return x;
}
public static void printArray(int[] x) {
int i = 0;
for (i=0; i< x.length; i++) {
System.out.print(x[i]);
if (i+1< x.length) {
System.out.print(", ");
}
}
System.out.println();
}
public static void main(String[] args) {
System.out.print("Array generated: \n");
//PrintIntArray("a", 15);
int count = Integer.parseInt(args[0]);
System.out.println("Anzahl: " + count);
int[] a = genIntArray(count);
//PrintIntArray("test", count);
long tick1, tick2;
//Zeitmessung beginnen
System.out.println("old unsorted array: ");
//printArray(a);
//start bubble sort
int[] x = bubble(a);
tick1 = System.currentTimeMillis();
x = bubble(x);
//Zeitmessung beenden
tick2 = System.currentTimeMillis();
System.out.println("new sorted array: ");
//printArray(x);
System.out.println("\nZeit benötigt: " + ((tick2 - tick1)) + " ms");
}
}
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