2.12numopdemo.java

JAVA程序设计的源代码

public class NumOpDemo {
public static void main(String []args){
int a=1+2;
int b=a*2;
int c=a/2;
int d=b%4;
int e=a-4;
int f=-a;
int i=6;
int j=6;
int k=i++;    //先赋值，后加一
int l=++j;    //先加一，后赋值

System.out.println("a = "+a);
System.out.println("b = "+b);
System.out.println("c = "+c);
System.out.println("d = "+d);
System.out.println("e = "+e);
System.out.println("f = "+f);
System.out.println("i = "+i);
System.out.println("j = "+j);
System.out.println("k = "+k);
System.out.println("l = "+l);
}
}