1、已知a,b均是整型变量，写出将a,b两个变量中的值互换的程序。（知识点：变量和 运算符综合应用）
package first; public class one { public static void main(String[] args) { // TODO Auto-generated method stub int a=1; int b=2; int c=a; a=b; b=c; System.out.println("交换后a的值："+a); System.out.println("交换后b的值："+b); }
package dome1;
import java.util.Scanner;public class Abc { public static void main(String[] args) { // TODO 自动生成的方法存根 Scanner scan = new Scanner(System.in); int a=scan.nextInt(); int ge=a%10; int shi=a/10%10; int bai=a/100; int sum=ge+shi+bai; System.out.println("ge="+ge); System.out.println("shi="+shi); System.out.println("bai="+bai); System.out.println("sum="+sum); }}
package first;
public class one {
public static void main(String[] args) {
// TODO Auto-generated method stub
//定义一个华氏度
int a=50;
//定义一个摄氏度
int b=(a-32)*5/9;
System.out.println("摄氏度="+b);
}
}
package first;
public class one {
public static void main(String[] args) {
// TODO Auto-generated method stub
char a = 'A';
System.out.println((char)(a + 32));
}
}
