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//classevalone import java.util.Scanner; public class ClassEvalOne { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("N = "); int length = sc.nextInt(); int[] array = new int[length]; for (int i = 0; i < length; i++) { array[i] = sc.nextInt(); } System.out.println("Original Array:"); for (int i = 0; i < length; i++) { System.out.print(array[i] + " "); } System.out.println(); for (int i = 0; i < length; i++) { if (array[i] > 0) { array[i] = 1; } else if (array[i] < 0) { array[i] = 0; } } System.out.println("After modifying:"); for (int i = 0; i < length; i++) { System.out.print(array[i] + " "); } System.out.println(); } } //classevaltwo import java.util.Scanner; public class ClassEvalTwo { public static void main(String[] args) { Scanner sc = new Scanner(System.in); System.out.print("N = "); int length = sc.nextInt(); int[] array = new int[length]; for (int i = 0; i < length; i++) { System.out.print("Enter a number: "); array[i] = sc.nextInt(); } int num1 = sc.nextInt(); boolean found = false; int index = -1; for (int i = 0; i < length; i++) { if (array[i] == num1) { index = i; found = true; break; } } if (found) { System.out.println(num1 + " is index " + index); } else { System.out.println("Element not found."); } } }
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