question: private void doubleStream ( ) { double [ ] doubles = new double [ ] { 2.4 , 4.2 , 6.3 , 8.5 , 10.1 } ; DoubleStream doubleStream1 = DoubleStream . of ( doubles ) ; doubleStream1 . forEach ( null ) ; DoubleStream doubleStream2 = DoubleStream . of ( 1.1 , 22.33 , 3.4 ) ; doubleStream2 . forEach ( null ) ; }
target:  Creating stream of doubles - DoubleStream