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我的程序大部分運行平穩。只有不正確的部分是變量newsub的最後一個輸入不起作用。程序跳過它並繼續前進。我試圖評論最後一部分,但後來我仍然不被允許輸入任何內容。所以顯然日食是跳過線?我看到了一些帖子,但是當我將第一部分從鍵盤更改爲輸入時,調用了一個錯誤,因爲他們將其視爲新的未調用變量。任何幫助都會很棒! (另外我完全知道我的程序比需要的更長)謝謝!java掃描儀跳過最後輸入
import java.util.Scanner;
public class ScannerTest1 {
public static void main(String[] args) {
Scanner keyboard = new Scanner(System.in);
System.out.print("Enter a long string: ");
String lin = keyboard.nextLine();
System.out.print("Enter a substring: ");
String sub = keyboard.nextLine();
int leng = lin.length();
System.out.println("Length of your string: " + leng);
int leng2 = sub.length();
System.out.println("Length of your substring: " + leng2);
int mid = lin.indexOf(sub);
System.out.println("Starting position of your substring in string: " + lin.indexOf(sub));
System.out.println(lin.substring(0, mid));
System.out.println(lin.substring((mid + leng2 + 1), leng));
System.out.print("Enter a position between 1 and 43: ");
int pos = keyboard.nextInt();
System.out.println("The character at position " + pos + " is " + lin.charAt(pos));
System.out.print("Enter a replacement string: ");
String newsub = keyboard.nextLine();
System.out.println("Your new string is: " + lin.substring(0, mid) + newsub + lin.substring((mid + leng2 +1), leng));
keyboard.close();
}
}