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☕ JAVA TRICK: Creating and chaining predicates

December 11, 2021

You know how to write lambdas to create predicates,

but did you know that the interfaces offers a lot of methods to create and combine them?

𝐂𝐚ðĨðĨ ð­ðĄðž ðĒ𝐧𝐎𝐭𝐚𝐧𝐜𝐞 ðĶðžð­ðĄðĻ𝐝𝐎 '𝐚𝐧𝐝', 'ðĻðŦ', '𝐧𝐞𝐠𝐚𝐭𝐞' 𝐟ðĻðŦ 𝐛ðĻðĻðĨ𝐞𝐚𝐧 𝐟ðĻðŦðĶðŪðĨ𝐚𝐎.

 

ð“ðĄðž 𝐟𝐚𝐜𝐭ðĻðŦðē ðĶðžð­ðĄðĻ𝐝 '𝐧ðĻ𝐭' ðĒ𝐎 𝐠ðŦ𝐞𝐚𝐭 𝐭ðĻ ðĒ𝐧ðŊ𝐞ðŦ𝐭 𝐚 ðĶðžð­ðĄðĻ𝐝 ðŦ𝐞𝐟𝐞ðŦ𝐞𝐧𝐜𝐞.

 

𝐀𝐧𝐝 ðĒ𝐟 ðēðĻðŪ ðĐ𝐚𝐎𝐎 𝐎ðĻðĶ𝐞 ðĻ𝐛ðĢ𝐞𝐜𝐭 𝐭ðĻ 'ðĒ𝐎𝐄𝐊ðŪ𝐚ðĨ', ðēðĻðŪ 𝐠𝐞𝐭 𝐚 ðĐðŦ𝐞𝐝ðĒ𝐜𝐚𝐭𝐞 ð­ðĄðšð­ ðœðĄðžðœðĪ𝐎 ðĒ𝐧𝐭𝐚𝐧𝐜𝐞𝐎 𝐟ðĻðŦ 𝐞𝐊ðŪ𝐚ðĨðĒ𝐭ðē 𝐰ðĒð­ðĄ ðĒ𝐭.

 

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