package Baozhuang; import java.util.Arrays; import java.util.Scanner; public class exe { public static void main(String[] args) { String s = "27O51I51022I8"; s = s.replace(‘O‘, ‘0‘); s = s.replace(‘I‘, ‘1‘); System.out.println(s); String s0 = "MY_English_NaMe"; String[] s1 = s0.split("_"); s1[0] = s1[0].toLowerCase(); s1[1] = s1[1].toUpperCase(); s1[2] = s1[2].toUpperCase(); //String 拼接 String s2 =s1[0]+ s1[1]+s1[2]; String s3 = s1[0].concat(s1[1]).concat(s1[2]); System.out.println(s3); System.out.println(s2); System.out.println(Arrays.toString(s1)); //StringBuffer拼接 StringBuffer s4 = new StringBuffer(s1[0]); s4 = s4.append(s1[1]).append(s1[2]); System.out.println(s4); Scanner input = new Scanner(System.in); String word; StringBuffer s5 = new StringBuffer(); do{ System.out.println("请输入英文单词:"); word = input.nextLine(); if (word.equals("end")){ break; } s5 = s5.append(word+","); }while(true); System.out.println(s5); String s6 = s5.toString(); String [] s7 = s6.split(","); /*for(int i = 0; i < s7.length ; i++){ System.out.println(s7[i]); }*/ //for each循环 for (String s8:s7){ System.out.println(s8); } input.close(); } }
时间: 2024-11-10 00:08:56