public TYPE_1 METHOD_1 ( int index ) { if ( ( index >= ( size ) ) && ( index < 0 ) ) { return null ; } return METHOD_1 ( index , VAR_1 ) ; } 

public TYPE_1 METHOD_1 ( int index ) { if ( ( index >= ( size ) ) || ( index < 0 ) ) { return null ; } return METHOD_1 ( index , VAR_1 ) ; } 
