01.遍历输出不同类型数组

遍历输出不同类型数组

大学课堂上老师布置的小练习，感觉挺有意思的，记录一下。

自己使用三个方法实现的。

package test02;

public class test023 {

	// 方法一
	public static void main(String[] args) {
		int[] int_array = new int[] { 1, 2, 3 };
		for (int num : int_array) {
			System.out.print(num + "~");
		}
		System.out.println();

		float[] float_array = new float[] { 1.0F, 2.0F, 3.0F, 4.0F };
		for (float num1 : float_array) {
			System.out.print(num1 + "~");
		}

		System.out.println();

		double[] double_array = new double[] { 11.0D, 22.0D, 33.0D, 11.0D, 22.0D, };
		for (double num2 : double_array) {
			System.out.print(num2 + "~");
		}
		System.out.println();

		//// 方法二
		int len1 = int_array.length; // 3
		int len2 = float_array.length; // 4
		int len3 = double_array.length; // 5
		Object[] fullArray = new Object[len1 + len2 + len3]; // 12
		for (int i = 0; i < len1; i++) {
			fullArray[i] = int_array[i];
			// 0 0
			// 1 1
			// 2 2

		}
		for (int i = len1; i < len1 + len2; i++) {
			fullArray[i] = float_array[i - len1];
			// 3 0
			// 4 1
			// 5 2
			// 6 3
		}
		for (int i = len1 + len2; i < len1 + len2 + len3; i++) {
			fullArray[i] = double_array[i - len1 - len2];
			// 7 0
			// 8 1
			// 9 2
			// 10 3
			// 11 4
		}

		for (Object num3 : fullArray) {
			System.out.print(num3 + "~");
		}

		System.out.println();

		// 方法三
		showArray(int_array, float_array, double_array);

	}

	public static void showArray(int[] int_array, float[] float_array, double[] double_array) {

		int len1 = int_array.length; // 3
		int len2 = float_array.length; // 4
		int len3 = double_array.length; // 5
		Object[] fullArray = new Object[len1 + len2 + len3]; // 12
		for (int i = 0; i < len1; i++) {
			fullArray[i] = int_array[i];
			// 0 0
			// 1 1
			// 2 2

		}
		for (int i = len1; i < len1 + len2; i++) {
			fullArray[i] = float_array[i - len1];
			// 3 0
			// 4 1
			// 5 2
			// 6 3
		}
		for (int i = len1 + len2; i < len1 + len2 + len3; i++) {
			fullArray[i] = double_array[i - len1 - len2];
			// 7 0
			// 8 1
			// 9 2
			// 10 3
			// 11 4
		}

		for (Object num3 : fullArray) {
			System.out.print(num3 + "~");
		}

	}

}