/*xml
   <module name="Checker">
     <module name="TreeWalker">
       <module name="UnnecessaryParentheses"/>
     </module>
   </module>
   */
   package com.puppycrawl.tools.checkstyle.checks.coding.unnecessaryparentheses;
   
  import java.util.List;
  
  // xdoc section -- start
  class Example1 {
  
    public int square(int a, int b) {
      // violation below, 'Unnecessary parentheses around assignment right-hand side'
      int square = (a * b);
      // violation below, 'Unnecessary parentheses around identifier 'square''
      return (square);
    }
  
    int sumOfSquares = 0;
    public void sumOfSquares() {
      // violation below, 'Unnecessary parentheses around literal '0''
      for (int i = (0); i < 10; i++) {
        // violation below, 'Unnecessary parentheses around assignment right-hand side'
        int x = (i + 1);
        sumOfSquares += (square(x,x));  // 2 violations
      }
    }
  
    List<String> myList = List.of("a1", "b1", "c1");
    public void filter() {
      myList.stream()
          // violation below, 'Unnecessary parentheses around lambda value'
          .filter((s) -> s.startsWith("c"))
              .forEach(System.out::println);
    }
  
    int a = 10, b = 12, c = 15;
    boolean x = true, y = false, z = true;
    public void test() {
      // 3 violations below
      if ((a >= 0 && b <= 9) || (c >= 5 && b <= 5) || (c >= 3 && a <= 7)) {
        return;
      }
      // violation below, 'Unnecessary parentheses around expression'
      if ((-a) != -27 && b > 5) {
        return;
      }
      if (x == (a <= 15)) {
        return;
      }
      if (x == (y == z)) {
        return;
      }
    }
  
  }
  // xdoc section -- end