question: public static void copyExcept ( Object src , Object dst , int oldSize , int removeIndex ) { if ( removeIndex > 0 && oldSize > 0 ) { System . arraycopy ( src , 0 , dst , 0 , removeIndex ) ; } if ( removeIndex < oldSize ) { System . arraycopy ( src , removeIndex + 1 , dst , removeIndex , oldSize - removeIndex - 1 ) ; } }
target:  Copy the elements of an array, and remove one element.