関連ワード:  java stream get one element from list    java stream get first element from list    java stream get single value from list    java stream get element from list    java stream get first element of list or null    java stream get specific element from list    java stream filter one element from list    java stream get value from list of objects    java 8 get element from list by attribute    java stream get value from list  
結果 : java stream get one element from list