第一次上机

package Text;

public class kaoshi {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
            int a=5,b=9,c=0;
            System.out.println("互换前a="+a+"b="+b);
            c=a;
            a=b;
            b=c;
            System.out.println("互换后a="+a+"b="+b);
    }

}

package Text;

public class kaoshi {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int shu=856,ge,shi,bai;
        ge=shu%10;
        shi=shu/10%10; bai=shu/100; System.out.println("该数的个十百的和为"+(ge+shi+bai)); } }

package Text;

public class kaoshi {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        double huashi=37.6;
        double sheshi=0;
        sheshi=(huashi-32)*5/9; huashi=sheshi*9/5+32; System.out.println("华氏到摄氏="+sheshi+"摄氏到华氏="+huashi); } }

package Text;

public class kaoshi {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		 char a = 'A';
		 char b=(char) (a+32);
		 System.out.println(b);
	}
}