从字符串末尾提取子字符串，直到遇到第一个空格？

Question

I have a string like this:

"De Proost Wim"

And i need "De Proost" in a string and "Wim" in another

so i need the first ' ' starting at the end of a string.

Answer 1

String str = /*Your-String*/;
String[] subs = str.split(" ");
String strLast = "";
if( subs.length > 1 )
    strLast = subs[subs.length-1];

Answer 2

Perhaps you could try something like:

public static String[] extract(final String string){
    assert string != null;
    final int i = string.lastIndexOf(' ');
    if(i == -1)
        return new String[]{string};
    final String first = string.substring(0, i);
    final String last = string.substring(i+1);
    return new String[]{first, last};
}

Usage:

final String[] parts = extract("De Proost Wim");

Value at each index:

0: "De Proost"

1: "Wim"

Answer 3

You can use lastIndexOf(' ') with the substring method :

String s = "De Proost Wim";
int lastIndex = s.lastIndexOf(' ');
String s1 = s.substring(0, lastIndex);
String s2 = s.substring(lastIndex+1);

System.out.println(s1); //De Proost
System.out.println(s2); //Wim

Just make sure that lastIndexOf doesn't return -1.