Java 练习英文语句首字母变大写

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p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco}p.p2 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; color: #4e9072}p.p3 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; color: #3933ff}p.p4 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco; min-height: 15.0px}span.s1 {color: #931a68}span.s2 {color: #000000}span.s3 {color: #3933ff}span.s4 {color: #0326cc}span.Apple-tab-span {white-space:pre}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:
p.p1 {margin: 0.0px 0.0px 0.0px 0.0px; font: 11.0px Monaco}
If You Miss The Tran I An On

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