程序如下：
∥计算两个整数的乘法 jAvA_1. jAvA
import jAvAx, swing. joptionpAnE;
puBliC ClAss jAvA_1
puBliC stAtiC voiD mAin(string Args[ ])
int x, y, rEsult;
string xvAl, yvAl;
xvAl = joptionpAnE. showinputDiAlog("输入第1个整数:");
yvAl = joptionpAnE. showinputDiAlog("输入第2个整数:");
∥********** FounD **********
x = intEgEr. pArsEint( (1) );
y = intEgEr. pArsEint(yvAl);
rEsult = x * y;
∥********** FounD **********
joptionpAnE. (2) ( null,"两个数的积:"+rEsult);
systEm. Exit(0);