Java/ZigZagArray.java at main · GEHU-ORG/Java · GitHub

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importjava.util.Scanner;

publicclassZigZagArray {
publicstaticvoidmain(String[] args) {
Scannerscanner = newScanner(System.in);

System.out.println("ZigZag Array Arrangement");
System.out.println("-----------------------");

System.out.print("Enter the size of the array: ");
intsize = scanner.nextInt();

int[] arr = newint[size];
System.out.println("Enter " + size + " integers:");
for (inti = 0; i < size; i++) {
arr[i] = scanner.nextInt();
 }

arrangeZigZag(arr);

System.out.println("ZigZag arranged array:");
for (intnum : arr) {
System.out.print(num + " ");
 }

scanner.close();
 }

privatestaticvoidarrangeZigZag(int[] arr) {
booleanflag = true; // true means '<' expected, false means '>' expected

for (inti = 0; i < arr.length - 1; i++) {
if (flag) { // '<' relation expected
if (arr[i] > arr[i + 1]) {
// Swap
inttemp = arr[i];
arr[i] = arr[i + 1];
arr[i + 1] = temp;
 }
 } else { // '>' relation expected
if (arr[i] < arr[i + 1]) {
// Swap
inttemp = arr[i];
arr[i] = arr[i + 1];
arr[i + 1] = temp;
 }
 }

flag = !flag; // Flip the flag for next comparison
 }
 }
}