import java.io.*; import java.util.*; class Main { public static void main(String[] args) { char[] a = {'a', 'b', 'c', 'd'}; char[] b = {'b', 'c', 'a', 'e', 'd'}; int one = a.length; int two = b.length; int total = 0; for(int i = 0; i < one; i++) { total += a[i]; } int total2 = 0; for(int j = 0; j < two; j++) { total2 += b[j]; } int integer = total2-total; char character = (char) integer; System.out.print(character); } }

import java.io.*; import java.util.Scanner; class Main { public static void main(String[] args) { int n; Scanner in = new Scanner(System.in); System.out.print("# of elements in array:"); n = in.nextInt(); int a[] = new int[n]; System.out.println("Enter " + n + " numbers seperated by spaces:"); for(int i = 0; i < n; i++) { a[i] = in.nextInt(); } int max = 0; for(int i=0; i< a.length; i++){ int j = a.length - 1; while (a[j] != a[i]){ j--; } int span = j-i+1; if (span > max){ max = span; } } System.out.print("Max span: " + max); } }

import java.util.Scanner; import java.io.*; class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.println("Your message:"); String message = in.nextLine(); System.out.println("Shift:"); int shift = in.nextInt(); System.out.println("Encoded message:"); decode(message, shift); } // encode public static void encode(String message, int shift) { for (int i=0; i<message.length(); i++){ char c = message.charAt(i); System.out.print((char)(c+shift)); } } // decode public static void decode(String message, int shift) { for (int i=0; i<message.length(); i++){ char c = message.charAt(i); System.out.print((char)(c-shift)); } } }