public class HomeWorkTask01 {
/*1.将"goOd gooD stUdy dAy dAy up"
每个单词的首字母转换成大写其余还是小写字母(不许直接输出good good study day day up 要用代码实现)*/
public static void main(String[] args) {
String str = "goOd gooD stUdy dAy dAy up";
//第一步： 先进行切割，拿到每一个字符
String[] split = str.split(" +");
StringBuilder sb = new StringBuilder();
for(int x = 0 ; x< split.length ; x++){
// goOd -->Good
split[x] = split[x].substring(0, 1).toUpperCase().concat(split[x].substring(1).toLowerCase()).concat(" ");
sb.append(split[x]);
}
System.out.println(sb);