Java數組打印輸出（char、其余基本數據類型、引用數據類型）

import org.junit.Test;

public class Demo {
    @Test
    public void test1(){
        /*
        關於數組輸出的測試
        char[]直接輸出時，各字符會拼接成字符串輸出。
        char[]拼接字符串后再輸出，則輸出數組的地址值。
        引用數據類型輸出類名+地址值
        其余基本數據類型輸出地址值
        綜上所述，char[]需要特別注意下
         */
        char c[] = {'c','h','i','n','a'};
        Character ch[] = {'c','h','i','n','a'};
        String s[] = {"ch","ina"};
        Demo demo[] = {};
        int i[] = {1,2,3};
        double d[] = {2.2,3.3};
        boolean bool[] = {true,false};

        System.out.println("char數組輸出：");
        System.out.print("直接輸出：");
        System.out.print(c);
        System.out.print("\n拼接字符串輸出：");
        System.out.print("char[] = "+c+"\n");

        System.out.println("************************************************************");

        System.out.println("引用數據類型數組輸出：");

        System.out.println("直接輸出：");
        System.out.println(ch);
        System.out.println(s);
        System.out.println(demo);
        
        System.out.println("拼接字符串輸出：");
        System.out.println("Character[]："+ch);
        System.out.println("String[]："+s);
        System.out.println("Demo[]："+demo);

        System.out.println("************************************************************");

        System.out.println("其它基本數據類型數組輸出：");

        System.out.println("直接輸出：");
        System.out.println(i);
        System.out.println(d);
        System.out.println(bool);

        System.out.println("拼接字符串輸出：");
        System.out.println("int[]："+i);
        System.out.println("double[]："+d);
        System.out.println("boolean[]："+bool);
    }
}