| Operator | Name | Method | Works with |
| a + b | Plus | a.plus(b) | Number, String, Collection |
| a - b | Minus | a.minus(b) | Number, String, Collection |
| a * b | Star | a.multiply(b) | Number, String, Collection |
| a / b | Divide | a.div(b) | Number |
| a % b | Modulo | a.mod(b) | Integral number |
| a++ ++a | Post increment Pre increment | a.next | Number，String，range |
| a-- --a | Post decrement Pre decrement | a.previous | Number，String，range |
| a **b | power | a.power(b) | Number |
| a | b | Numerical or | a.or(b) | Integral number |
| a & b | Numerical and | a.and(b) | Integral number |
| a ^ b | Numerical xor | a.xor(b) | Integral number |
| -a | Bitwise complement | a.negate() | Integral number,String |
| a[b] | Subscript | a.getAt(b) | Object, list, map, String, Array |
| a[b]=c | Subcript assignment | a.putAt(v,c) | Object, list, map, StringBuffer, Array |
| a << b | Left shift | a.leftShift(b) | Integral number |
| a >> b | Right shift | a.rightShift(b) | Integral number |
| a >>> b | Right shift unsigned | a.rightShiftUnsigned(b) | Integral number |
| switch(a){ case b: } | Classification | b.isCase(a) | Object, range, list, collection, pattern, closure |
| a <=> b | Spaceship | a.compareTo(b) | java.lang.Comparable |
| a > b | Greater than | a.compareTo(b) > 0 | |
| a >= b | Greater than or equal to | a.compareTo(b) >= 0 | |
| a < b | Less than | a.compareTo(b) < 0 | |
| a <= b | Less than or equal to | a.compareTo(b) <= 0 | |