```java

//示例计算两个整数的和

public class SumCalculator {

public static void main(String[] args) {

int num1 = 5;

int num2 = 3;

int sum = num1 + num2;

System.out.println(第一个整数: + num1);

System.out.println(第二个整数: + num2);

System.out.println(两数之和: + sum);

}

}

```

```java

//示例计算两个整数的和

public class AdvancedSumCalculator {

private int number1;

private int number2;

public AdvancedSumCalculator(int num1, int num2) {

this.number1 = num1;

this.number2 = num2;

}

public int calculateSum() {

return number1 + number2;

}

public void displayResult() {

System.out.println(number1 + + + number2 + = + calculateSum());

}

public static void main(String[] args) {

AdvancedSumCalculator calculator = new AdvancedSumCalculator(8, 12);

calculator.displayResult();

}

}

```

```java

//示例计算两个整数的和

import java.util.Scanner;

public class InteractiveSumCalculator {

public static void main(String[] args) {

Scanner scanner = new Scanner(System.in);

System.out.print(请输入第一个整数: );

int firstNumber = scanner.nextInt();

System.out.print(请输入第二个整数: );

int secondNumber = scanner.nextInt();

int total = firstNumber + secondNumber;

System.out.println(计算结果: + firstNumber + + + secondNumber + = + total);

scanner.close();

}

}

```