剑指offer第二题 替换空格 Java实现

package fenshujs;

import java.util.Scanner;

public class Janzhioffer {

/*

 * 剑指offer第二题  替换空格

 */
public static void main(String[] args) {
// TODO Auto-generated method stub

       Scanner sc = new Scanner(System.in);

       StringBuilder sb = new StringBuilder(sc.nextLine());

       for(int i = 0;i<sb.length();i++)

       {

      if(sb.charAt(i) == 32)

      {

      sb.replace(i, i+1, "%20");

      }

       }

       System.out.println(sb);
}

}

We Are Happy

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