You can use reduction operators, which return a matrix of reduced dimension, in place of values for subscripts to get reductions across all rows and columns. Table 4.3 lists the eight operators for ...

Although a simple for loop can access any of the characters in a string. Sometimes you just want to inspect one character at a given position without visiting them all. The subscript operator [] makes ...

String source = "{\"user\": {\"firstname\": \"Dave\", \"lastname\": \"Matthews\"}}"; System.out.println(JsonPath.read(source, "$..firstname")); // prints ["Dave ...