import java.util.*; public class forth2 { public static void main(String[] args) { Scanner input =new Scanner(System.in); System.out.print("enter a string: "); String s=input.nextLine(); int low =0; int high=s.length()-1; boolean isp=true; while(low<high) { if(s.charAt(low)!=s.charAt(high)) { isp=false; break; } low++; high--; } if(isp) System.out.println(s +"is a palindrome"); else System.out.println(s +"is not"); } }
java:判断字符串是不是回文字符串
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