java对象数组

桃扇骨 2022-11-17 13:36 175阅读 0赞

## java对象数组 ##

/**
     * 对象数组
     */
    public class TestArray {
        public static void main(String[] args) {
            //定义一个数组，存储4个分数，并遍历
            int[] arr;
            arr = new int[4];
            arr[0] = 90;
            arr[1] = 80;
            arr[2] = 100;
            arr[3] = 54;
            for (int score:arr){
                System.out.println(score);
            }
            System.out.println("---------------------------------");
    
            Computer[] arr2 = new Computer[4];
            arr2[0] = new Computer("酷睿","三星","华硕","罗技");
            arr2[1] = new Computer("Intel","金士顿","技嘉","双飞燕");
            arr2[2] = new Computer("AMD","三星","华硕","双飞燕");
            arr2[3] = new Computer("酷睿","金士顿","技嘉","罗技");
            for (Computer computer:arr2){
                computer.show();
            }
        }
    
    }

/**
     * 定义计算机类并模拟其操作
     */
    public class Computer {
        //成员变量
        private String cpu = "Intel";   // cpu
        private String memory;  //内存
        private String mainBoard;   //主板
        private String keyBoard;    //键盘
    
        //构造方法
        public Computer(){
            System.out.println("-----Computer-----");
            cpu = "AMD";
        }
    
        public Computer(String cpu,String memory,String mainBoard,String keyBoard){
            this.cpu = cpu;
            this.memory = memory;
            this.mainBoard = mainBoard;
            this.keyBoard = keyBoard;
        }
    
        //成员方法
        public void start(){
            System.out.println("-----starting-----");
        }
    
        public void close(){
            System.out.println("-----closing-----");
        }
    
        public void show(){
            System.out.println("cpu"+cpu+",memory"+memory+",mainBoard"+mainBoard+",keyBoard"+keyBoard);
        }
    
        public static void main(String[] args) {
            Computer computer = new Computer();
            Computer computer2 = new Computer("酷睿","三星","华硕","罗技");
            computer.start();
            computer.show();
            computer.close();
            System.out.println("=============================");
            computer2.start();
            computer2.show();
            computer2.close();
    
        }
    
    }

执行代码如下：

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