黑色icon係macOS跟機Terminal黎... 你唔download佢都(一定)已經響度
而白色有java logo嗰隻係你行緊jre嗰時會跳出黎既「app」
其實衣家聽落你似乎唔係好熟,所以搞到亂晒籠咁
你想行嗰隻TWS我google左吓就見到有人咁講:
TWS brings its own version of Java when you install TWS on your computer. You don't need to install Java separately as TWS will not use it. https://www.elitetrader.com/et/threads/ib-tws-macbook-pro-2018-issues.327744/