- a++,–b分别的值
public class avgscore {
public static void main(String[] args) {
int num=5;
int a=num++;
int b=++num;
System.out.println(a);
System.out.println(b);
}
-
结果:
-
a=5 b=7
-
统计三门成绩,并输出其中三门成绩的差以及平均分
public class avgscore {
import java.util.Scanner;
public static void main(String[] args) {
Scanner s1=new Scanner(System.in);
System.out.println("STB的成绩是:");
int STB=s1.nextInt();
System.out.println("JAVA的成绩是:");
int JAVA=s1.nextInt();
System.out.println("SQL的成绩是:");
int SQL=s1.nextInt();
int diffen;
double avg;
diffen=JAVA-SQL;
System.out.println("JAVA和SQL的分数差是:"+diffen);
avg=(STB+JAVA+SQL)/3;
System.out.println("3门课的平均分是:"+avg);
}
}