how to repalce a specific character from the lane in intellij\ code example

Example 1: intellij replace all

// 1. On the main menu, choose Edit | Find | Replace in Path.
// 2. Press Ctrl + Shift + R.

Example 2: search and replace all jetbrains

// Selects all instances of selected text
CRTL-CMD-G

// You can do this after CMD-F too