JNI与C++数据类型传递示例（包括ArrayList对象、ArrayList嵌套返回）

package com.test; import java.util.ArrayList; import java.util.List; public class JNI_cCalljava_test { public JNI_cCalljava_test() { super(); } public static int square_int(int n) { return n*n; } public static int square_int(String xn) { int n=0; n= Integer.parseInt(xn); return n*n; } public boolean judge(boolean bool) { System.out.print("JAVA FUN judge:"); System.out.println(bool); return !bool; } public static String funDString01(String x0) { return "JAVA funDString01 return:"+x0; } public static ArrayList funList01(String str_x0) { ArrayList<String> strLint01 = new ArrayList<>(); strLint01.add("字符串01"); strLint01.add("字符串02"); strLint01.add("字符串03"); strLint01.add("参数传入："+str_x0); return strLint01; } public static ArrayList funAAList(String str_x0) { ArrayList<ArrayList<String>> aalist01 = new ArrayList<>(); ArrayList<String> first = new ArrayList<>(); //创建第一个 ArrayList<String> second = new ArrayList<>(); ArrayList<String> third =new ArrayList<>(); first.add("AL01-01杨幂"); second.add("AL02-01李冰冰"); second.add("AL02-02范冰冰"); third.add("AL03-01黄晓明"); third.add("AL03-02赵薇"); third.add("AL03-03陈坤"); aalist01.add(first); aalist01.add(second); aalist01.add(third); return aalist01; } }