根据空格剪切英文的首字母

/**
 * @date 2023/2/13
 **/
@RunWith(SpringRunner.class)
@SpringBootTest(classes = RbpsemsWebApplication.class)
public class ThreeLanguageTest {

    @Test
    public void getFirst() {
        String name = "Waiting hall all you";
        String abbreviation = getFirstLetters(name);
        System.out.println("================>>> " + abbreviation + " <<<================");
    }

    //获取英语第一个字母的方法
    public String getFirstLetters(String text) {
        String firstLetters = "";
//        text = text.replaceAll("[.,]", "");
        for(String s : text.split(" ")) {
            firstLetters += s.charAt(0);
        }
        //转换成大写
        String s = firstLetters.toUpperCase();
        return s;
    }
}