Java 练习英文语句首字母变大写

public class TxtText {

public static void main(String[] args) {

//首字母大写

String str="if you miss the tran i an on";

//1.按空格切割

String strArr[]=str.split(" ");

//2.初始化一个结果数组

String resultArr[]=new String[strArr.length];

//3.遍历

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

resultArr[i]=strArr[i].replaceFirst(strArr[i].substring(0,1),strArr[i].substring(0,1).toUpperCase());

         

}

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

System.out.print(resultArr[i]+" ");

}

输出结果:

If You Miss The Tran I An On