I'm gonna claim a primitive type let's say white age equals 30 now asserting and initializing a reference kind is slightly distinctive from primitive kind let me display you so let's kind date now here in this tooltip field that's called intellisense we will see diverse instructions that have date of their call so IntelliJ is supporting us complete our code through suggesting these magnificence names now here we have a date class in this package Java the util so this package deal contains loads of utility classes which are useful in a lot of applications you actually have a date magnificence in a java burn Reviews distinctive package deal Java SQL or sequel that's used for programming databases so this is the advantage of packages we are able to have the identical elegance however in extraordinary applications they don't warfare so programs create a namespace for our training ok now in this case if we select the first date elegance and press enter or tab IntelliJ automatically provides this line for us import Java which you until the date so due to the fact presently we are in this bundle for you to use a class from