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GeezerVison is showing github.com — algorithms/java/Permutation.java at master · lntutor/algorithms

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Permutation.java

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public class Permutation {
private int [] array = {1,2,3,4,5,6,7};
public Permutation(int[] array) {
this.array = array;
}
public void setArray(int []array) {
this. array = array;
}
public void swap(int i, int j) {
int tmp = array[i];
array[i] = array[j];
array[j] = tmp;
}
public void permutate(int left, int right) {
if (left == right) {
Utils.printArray(array);
} else {
for (int i = left; i <= right; i++) {
swap(left, i);
permutate(left + 1, right);
swap(left, i);
}
}
}
public void printPermutate(){
permutate(0, array.length - 1);
}
}
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