Java Stream Example

File Structure

IDE(Recommand)

• Visual Studio Code

  • Click File Open
    • Select [Project Folder]
  • Click Terminal
    • New Terminal

      • Format:

        $ javac -d . [FileName.java]
        $ java [Package].[ClassName]
        

Run

• Compile & Execute:

  $ javac -d . HelloWorld.java
  $ java hello.HelloWorld
  

Code

Snippet

public static boolean containsName(ArrayList<Cat> list, String name)
{
  return list.stream().filter(o -> o.getName().equals(name)).findFirst().isPresent();
}

Source

1. HelloWorld.java
2. Cat.java

Ref:

1. Java List.contains(Object with field value equal to x)

   

2. How can I solve "java.lang.NoClassDefFoundError"?