public void METHOD_1 ( char c ) { if ( c == CHAR_1 ) { METHOD_2 ( ) ; } else { VAR_1 . append ( c ) ; } } 

public void METHOD_1 ( char c ) { if ( c < 0 ) return ; if ( c == CHAR_1 ) { METHOD_2 ( ) ; } else { VAR_1 . append ( c ) ; } } 
