关于字符变量用Java

定义字符变量charVar并赋值，如果字符变量是‘A’则输出“此字符是A”否则输出“此字符不是A” 最后输出“程序结束”

Scanner input = new Scanner(System.in);
System.out.print("输入一个字符：");
char Var = input.next().charAt(0);

    if(Var == 'A') {
        System.out.println("此字符是A");
    }else {
        System.out.println("此字符不是A");
    }

Scanner sc = new Scanner(System.in);
        String in = sc.next();
        char charVar = in.charAt(0);
        if('A'==charVar){
            System.out.println("此字符是A");
        }else{
            System.out.println("此字符不是A");
        }
        System.out.println("程序结束");