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created HA01 Folder and moved ArrayManipulation.java into it to keep new Projects clean

master
fdai7303 2 years ago
parent
commit
746eb987fe
  1. 0
      HA01/ArrayManipulation.java
  2. 104
      HA01/ArrayManipulation_L.java
  3. 1
      TEST.txt

0
ArrayManipulation.java → HA01/ArrayManipulation.java

104
ArrayManipulation_L.java → HA01/ArrayManipulation_L.java

@ -1,52 +1,52 @@
import java.util.Arrays;
public class ArrayManipulation {
public static int[] reverseArray(int[] arr) {
for (int i = 0; i < arr.length/2; i++) {
int tmp = arr[i];
arr[i] = arr[arr.length - 1 - i];
arr[arr.length - 1 - i] = tmp;
}
return arr;
}
public static int[] removeFirst(int[] arr) {
//temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1];
//Zahlen Rüberkopieren, bis auf die erste
for (int i = 1, k = 0; i < arr.length; i++) {
temp[k++] = arr[i];
}
return temp;
}
public static int[] removeLast(int[] arr) {
//temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1];
//Zahlen Rüberkopieren, bis auf das letzte
for (int i = 0, k = 0; i < temp.length; i++) {
temp[k++] = arr[i];
}
return temp;
}
public static int[] squareEach(int[] arr) {
for (int i = 0; i < arr.length; i++) {
int tmp = arr[i];
arr[i] = tmp*tmp;
}
return arr;
}
public static void main(String[] args) {
int[] arr = {1,2,3,4,5};
System.out.println(Arrays.toString(arr));
System.out.println(Arrays.toString(reverseArray(arr)));
System.out.println(Arrays.toString(squareEach(arr)));
System.out.println(Arrays.toString(removeFirst(arr)));
System.out.println(Arrays.toString(removeLast(arr)));
}
}
import java.util.Arrays;
public class ArrayManipulation {
public static int[] reverseArray(int[] arr) {
for (int i = 0; i < arr.length/2; i++) {
int tmp = arr[i];
arr[i] = arr[arr.length - 1 - i];
arr[arr.length - 1 - i] = tmp;
}
return arr;
}
public static int[] removeFirst(int[] arr) {
//temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1];
//Zahlen Rüberkopieren, bis auf die erste
for (int i = 1, k = 0; i < arr.length; i++) {
temp[k++] = arr[i];
}
return temp;
}
public static int[] removeLast(int[] arr) {
//temp array erstellen, mit einer stelle weniger
int[] temp = new int[arr.length - 1];
//Zahlen Rüberkopieren, bis auf das letzte
for (int i = 0, k = 0; i < temp.length; i++) {
temp[k++] = arr[i];
}
return temp;
}
public static int[] squareEach(int[] arr) {
for (int i = 0; i < arr.length; i++) {
int tmp = arr[i];
arr[i] = tmp*tmp;
}
return arr;
}
public static void main(String[] args) {
int[] arr = {1,2,3,4,5};
System.out.println(Arrays.toString(arr));
System.out.println(Arrays.toString(reverseArray(arr)));
System.out.println(Arrays.toString(squareEach(arr)));
System.out.println(Arrays.toString(removeFirst(arr)));
System.out.println(Arrays.toString(removeLast(arr)));
}
}

1
TEST.txt

@ -1 +0,0 @@
TEST
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