14-3_ReWrite.java

package lesson14;

//_à Óäàëèòü ñ m ïî n ñèìâîëîâ, ïåðåçàïèñàòü ñòðîêó è ïîêàçàòü åå íà ýêðàí.

import java.util.Scanner;
 
public class ReWrite {
	
	private static Scanner scanner;
	private static int m,n;

	public static void main(String[] args) {

		//_à Èçíà÷àëüíàÿ ñòðîêà
		String string = "ß ðåãóëÿðíî èçó÷àþ ÿçûê Java";
				
		//_à Ñòðîêà, â êîòîðóþ áóäåì ïåðåçàïèñûâàòü
		String result = "";
		
		System.out.println(string);

		scanner = new Scanner(System.in);
		
		
		try {
			System.out.print("Ââåäèòå íîìåð ïåðâîãî ñèìâîëà: ");
			
			//_à Íà÷àëüíûé ñèìâîë - m
			m = scanner.nextInt();
					
			System.out.print("Ââåäèòå íîìåð ïîñëåäíåãî ñèìâîëà: ");
		
			//_à ïîñëåäíèé ñèìâîë - n
			n = scanner.nextInt();
			
			
			//_à Ïðîâåðêà êîðåêòíîñòè m è n
			if ( (m >=0) & (m <= string.length()) ) {
				if ( (n >= m) & (n <= string.length()) ) {
					
					//_à Ïåðåçàïèñü ñòðîêè
					for (int i=0; i<string.length(); i++) {
						if ( (i>=0 & i<m) || (i>n & i<string.length()) )
							result += string.charAt(i);
					}
					
					//_à Âûâîä ðåçóëüòèðóþùåé ñòðîêè
					System.out.println(result);
					
				} else {
					System.out.println("Íîìåð ïîñëåäíåãî ñèìâîëà âûõîäèò çà äîïóñòèìûé äèàïàçîí.");
				}
			} else {
				System.out.println("Íîìåð ïåðâîãî ñèìâîëà âûõîäèò çà äèàïàçîí ñòðîêè.");
			}
			
			//
				
		} catch (java.util.InputMismatchException e) {
			System.out.println("Íåâåðíûé ôîðìàò!");
			System.exit(0);
		}
		
	}

}