Wie drucke ich nur bestimmte Details aus dem String-Array?

Question

class temp 
{ 
    public static void main(String []args) 
    { 
     String [] arp = new String [] {"Sarah is a good girl","Sarah is a bad girl"} ;// I only want to print "good" from this array and not the entire string in the below println statement. 

     System.out.println(arp[0]);//this will print the entire string on element[0] while i only want to print "good" from that string. 
    } 
} 

Wenn dieses Problem gelöst ist, wird meine vorherige Frage ebenfalls gelöst.

Answer 1

Verwenden Sie einfach eine if-Anweisung und String.contains

String[] strs = ...; 
for (int i = 0; i < strs.length; i++) { 
    if (strs[i].contains("good")) System.out.println("good"); 
} 

Answer 2

Sie können auch String split() Funktion verwenden.

Beispiel:

String [] arp = new String [] {"Sarah is a good girl","Sarah is a bad girl"} ; 

    for (int i = 0; i < arp.length; i++) { 
    String data = arp[i]; 
    String[] ex = data.split(" "); // You trim to remove leading and trailing spaces here 
    System.out.println(ex[0]); //prints Sarah 
    System.out.println(ex[1]); //prints is 
    System.out.println(ex[2]); //prints a 
    System.out.println(ex[3]); //prints good 
    System.out.println(ex[4]); //prints girl 
} 

Answer 3

Es wird funktionieren.

class temp{ 
    public static void main(String []args){ 
     String arp[] ="Sarah is a good girl","Sarah is a bad girl" ; 
     System.out.println(arp[3]); 
    } 
} 

https://ideone.com/5mDnZS