Java Interview Topics---even string __java

topic:

If a string is connected by two identical strings, the string is called a couple strings. For example, "xyzxyz" and "aaaaaa" are even strings, but "Ababab" and "Xyzxy" are not.
cows now give you a string s that contains only lowercase letters, you can delete 1 and or more characters from the end of the string s to ensure that after the deletion of the string or a couple of strings, Niu Niu want to know how long after the deletion of the length of the string.

Enter a description:

The input includes a string s, length of string (2≤length≤200), which guarantees that s is a string and is composed of lowercase letters.

Output Description:

Outputs an integer that indicates how long the longest string of strings can be obtained after the deletion. Ensure that the test data has a non 0 solution

Enter Example 1:

Abaababaab

Output Example 1:6

Import Java.util.Scanner;

public class Oustring {public

	static void Main (string[] args) {
		
		Scanner sc = new Scanner (system.in);
		String Str=sc.next ();
		SYSTEM.OUT.PRINTLN (Getlenth (str));

	private static int getlenth (String str) {

		int len=str.length ();
		int i=1;
		int end=len-1;//string Deletes the last one first;
	
		if (len<2 | | | len>200) return
			0;
		
		while (end>1) {
			String sub=str.substring (0, end);
			String str1=str.substring (0,END/2);
			String str2=str.substring (END/2, end);
			
			if (Str1.equals (str2)) {return end
				;
			} else{
				end=len-i;
				i++
			}
		}
		return 0;
	}
}