当然！以下是一些适用于初学者的基础编程题，这些题目可以用Java和C语言来练习。

1. 打印"Hello, World!"

Java:

public class HelloWorld {  
    public static void main(String[] args) {  
        System.out.println("Hello, World!");  
    }  
}  

C:

#include <stdio.h>  
int main() {  
    printf("Hello, World!\n");  
    return 0;  
}  

2. 计算两个数的和

Java:

import java.util.Scanner;  
public class Sum {  
    public static void main(String[] args) {  
        Scanner scanner = new Scanner(System.in);  
        System.out.println("Enter two numbers:");  
        int num1 = scanner.nextInt();  
        int num2 = scanner.nextInt();  
        int sum = num1 + num2;  
        System.out.println("Sum: " + sum);  
    }  
}  

C:

#include <stdio.h>  
int main() {  
    int num1, num2, sum;  
    printf("Enter two numbers:\n");  
    scanf("%d %d", &num1, &num2);  
    sum = num1 + num2;  
    printf("Sum: %d\n", sum);  
    return 0;  
}  

3. 判断一个数是奇数还是偶数

Java:

import java.util.Scanner;  
public class OddEven {  
    public static void main(String[] args) {  
        Scanner scanner = new Scanner(System.in);  
        System.out.println("Enter a number:");  
        int num = scanner.nextInt();  
        if (num % 2 == 0) {  
            System.out.println(num + " is even.");  
        } else {  
            System.out.println(num + " is odd.");  
        }  
    }  
}  

C:

#include <stdio.h>  
int main() {  
    int num;  
    printf("Enter a number:\n");  
    scanf("%d", &num);  
    if (num % 2 == 0) {  
        printf("%d is even.\n", num);  
    } else {  
        printf("%d is odd.\n", num);  
    }  
    return 0;  
}  

4. 打印1到10的数字

Java:

public class PrintNumbers {  
    public static void main(String[] args) {  
        for (int i = 1; i <= 10; i++) {  
            System.out.println(i);  
        }  
    }  
}  

C:

#include <stdio.h>  
int main() {  
    for (int i = 1; i <= 10; i++) {  
        printf("%d\n", i);  
    }  
    return 0;  
}  

5. 计算数组元素的平均值

Java:

public class Average {  
    public static void main(String[] args) {  
        int[] numbers = {10, 20, 30, 40, 50};  
        int sum = 0;  
        for (int num : numbers) {  
            sum += num;  
        }  
        double average = (double) sum / numbers.length;  
        System.out.println("Average: " + average);  
    }  
}  

C:

#include <stdio.h>  
int main() {  
    int numbers[] = {10, 20, 30, 40, 50};  
    int sum = 0;  
    int length = sizeof(numbers) / sizeof(numbers[0]);  
    for (int i = 0; i < length; i++) {  
        sum += numbers[i];  
    }  
    double average = (double)sum / length;  
    printf("Average: %.2f\n", average);  
    return 0;  
}  

这些题目可以帮助你熟悉基本的输入输出、条件判断、循环和数组操作的概念。完成之后，你也可以尝试加入一些额外的功能或挑战自己，譬如实现错误处理或更复杂的数据结构。