Java數組遍曆輸出

在Java中，如何將字串數組寫入輸出控制臺？

以下示例演示了通過迴圈將數組的元素寫入輸出控制臺。

package com.zaixian;

public class ArrayOutput {
    public static void main(String[] args) {
        String[] greeting = new String[3];
        greeting[0] = "This is the greeting";
        greeting[1] = "for all the readers from";
        greeting[2] = "Java Source .";

        for (int i = 0; i < greeting.length; i++) {
            System.out.println(greeting[i]);
        }
    }
}

執行上面示例代碼，得到以下結果 -

This is the greeting
For all the readers From
Java source .

示例-2

以下示例演示了將數組的元素寫入輸出控制臺 -

package com.zaixian;

import java.util.*;

public class ArrayOutput2 {
    public static void main(String[] args) {
        String[] arr = new String[] { "http://", "www", "zaixian", ".com" };
        System.out.println(Arrays.toString(arr));
    }
}

執行上面示例代碼，得到以下結果 -

[http://, www, zaixian, .com]

嵌套數組示例

以下示例演示了通過迴圈將數組的元素寫入輸出控制臺。

package com.zaixian;

import java.util.*;

public class ArrayOutput3 {
    public static void main(String[] args) {
        String[][] deepArr = new String[][] { { "Max", "Min" },
                { "Sum", "Avg" } };
        System.out.println(Arrays.toString(deepArr));
        System.out.println(Arrays.deepToString(deepArr));
    }
}

執行上面示例代碼，得到以下結果 -

[[Ljava.lang.String;@152b6651, [Ljava.lang.String;@544a5ab2]
[[Max, Min], [Sum, Avg]]