试试这个

    String str = "This is String";
    String[] splited = str.split("\\s+");

    String split_one=splited[0];
    String split_second=splited[1];
    String split_three=splited[2];

   Log.d("Splited String ", "Splited String" + split_one+split_second+split_three);

简单的吐串由空间

    String CurrentString = "First Second Last";
    String[] separated = CurrentString.split(" ");

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

         if (i == 0) {
             Log.d("FName ** ", "" + separated[0].trim() + "\n ");
         } else if (i == 1) {
             Log.d("MName ** ", "" + separated[1].trim() + "\n ");
         } else if (i == 2) {
             Log.d("LName ** ", "" + separated[2].trim());
         }
     }

下面是一个非常简单的例子:

希望能有所帮助。

String str = "Hello I'm your String";
String[] splited = str.split(" ");
var splited = str.split(" ");
var splited1=splited[0]; //Hello
var splited2=splited[1]; //I'm
var splited3=splited[2]; //your
var splited4=splited[3]; //String

你可以使用下面的代码分离字符串:

   String theString="Hello world";

   String[] parts = theString.split(" ");

   String first = parts[0];//"hello"

   String second = parts[1];//"World"

将解决方案整合在一起!

public String getFirstNameFromFullName(String fullName){
    int indexString = fullName.trim().lastIndexOf(' ');
    return (indexString != -1)  ? fullName.trim().split("\\s+")[0].toUpperCase() : fullName.toUpperCase();
}

char用单引号代替双引号

String[] split = str.split(' ');