关键：声明变量temp 与各数值比较。
package Exam01;
import java.util.Scanner; public class Topic03 {
public static void main(String[] args) {
// TODO Auto-generated method stubint a,b,c;
//输入
Scanner input = new Scanner(System.in);
System.out.println("请输入一个整数：");
a = input.nextInt();
System.out.println("请输入二个整数：");
b = input.nextInt();
System.out.println("请输入三个整数：");
c = input.nextInt();
System.out.println(a+","+b+","+c);
int temp;int min;
if(a>b){
temp = a;
a = b;
b = temp;
}
if(a>c){
min = b;
}else{
min = a;
}if(min>c){
min = c;
}
System.out.println("最小值：" + min);
}
}
