How to create Nav with Angular + Angular Material

To setup a basic navigation in Angular Material, type the following command in your terminal (e.g. I am using WebStorm IDE):

$ ng generate @angular/material:material.nav -name=main-nav

This will create a component named main-nav with all basic elements, fully responsive and free to modify.

How to remove line breaks etc. in Java String

myString.trim()
.replace("\n", "")
.replace("\r", "")
.replace(System.getProperty("line.separator"), "");

Remove duplicates in list with Java > 8

    //remove duplicates from a list with Java 8 or greater     

    mylist.stream().distinct.collect(Collectors.toList())

Mock static methods with Mockito in Java (mock, static, method, java)

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.BDDMockito;
import org.powermock.api.mockito.PowerMockito;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;

@RunWith(PowerMockRunner.class)
@PrepareForTest(MyStatic.class)
...


@Test

public void someTest() {
    

    //given    

    PowerMockito.mockStatic(MyStatic.class);
    BDDMockito.given(MyStatic.someStaticMethod()).willReturn(...);

    //when
    ...

    //then     

    PowerMockito.verifyStatic();
    MyStatic.someStaticMethod();

    assertThat(//your further asserts....