内置函数和 System.out.println

1System.out.println("Hello, World!");

1System.out.println("Hello, World!");
2System.out.println("Testing, testing..");
3System.out.println(1);
4System.out.println(2);
5System.out.println(3);

代码示例

1=== MART RECEIPT ===
2
3Cashier Name: Alex
4
5Items Purchased:
6Milk (1): 4
7Bread (1): 2
8Eggs (12): 0.5 x 12 = 6
9
10Total bill: 4 + 2 + 6 = 12

1System.out.println("=== MART RECEIPT ===");
2System.out.println("Cashier Name: Alex");

代码示例

1=== MART RECEIPT ===
2Cashier Name: Alex

代码示例

1编写一个 Java 程序，仅使用 System.out.println() 语句打印出以下收据：
2
3=== MART RECEIPT ===
4
5Cashier Name: Alex
6
7Items Purchased:
8Milk (1): 4
9Bread (1): 2
10Eggs (12): 0.5 x 12 = 6
11
12Total bill: 4 + 2 + 6 = 12

1class Receipt {
2    public static void main( String args[] ) {
3        // 编写生成收据的代码
4    }
5}

代码示例

1=== MART RECEIPT ===
2Cashier Name: Sam
3
4Items Purchased:
5Pen (1): 20
6Notebook (1): 45
7Bag (1): 120
8
9Total bill: 20 + 45 + 120 = 185

1class Receipt {
2    public static void main( String args[] ) {
3        // 在此处编写你的代码
4    }
5}