data structure java language

StackPT stk1 - new ArrayStackPT(8); StackPT stk2 = new ArrayStaekPT(8); StackPT stk3 - new ArrayStackPT(8); StackPT stk4 - new ArrayStackPT(8); QueuePT q1 = new ArrayQueuePT(8); int n=30; while (n>0){ stk1.push(n\%4+1); n=n/4; \} String result =" " ; while (Istk1.isEmpty0) result += stkl.pop 0+"= \} System.out.printin("the output of stk1 :"'+result): // for (inti=0;i