输入一段字符串和要判断的字母，然后判定该字母是否在字符串里面，给出相应的提示

package arithmeticString;

import java.util.Scanner;

public class testString {

	public static void main(String[] args) {

		// String str="fsdklfjxxxfd";
		Scanner scan = new Scanner(System.in);

		// 获得字符串
		System.out.print("请输入字符串：");
		String str = scan.nextLine();

		char[] array = str.toCharArray();
		System.out.print("您输入的字符是：");
		System.out.println(array);
		System.out.println("请你输入要判断的字符：");
		String str2 = scan.nextLine();
		char str3 = str2.charAt(0);
		for (int i = 0; i < array.length; i++) {
			if (array[i] == str3) {
				System.out.println(str3 + "存在字符串中！");
				return;
			}
		}
		System.out.println();
		System.out.println("不存在！");
	}
}