NullPointerException 2 koda sa ovim problemom

Code:
java.lang.NullPointerException
    at Uvodni.teme(Uvodni.java:43)
    at Uvodni.<init>(Uvodni.java:61)
    at Uvodni$1.run(Uvodni.java:25)
    at java.awt.event.InvocationEvent.dispatch(Unknown Source)
    at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
    at java.awt.EventQueue.access$200(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.awt.EventQueue$3.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.security.ProtectionDomain$1.doIntersectionPrivilege(Unknown Source)
    at java.awt.EventQueue.dispatchEvent(Unknown Source)
    at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
    at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
    at java.awt.EventDispatchThread.run(Unknown Source)

Code:
39    private String[] teme(){
     40    String[] temp = null;
     41    UIManager.LookAndFeelInfo[] laf = UIManager.getInstalledLookAndFeels();
     42    for(int i = 0; i < laf.length; i++){
     43        temp[i] = laf[i].getName();
     44
     45    }
        return temp;
    }

Code:

temp = new String[laf.length];