public static void main(String args[]){
Scanner in = new Scanner(System.in);//接收键盘的输入
int x=0,y=0,z=0;//初始化参数
System.out.println("请输入三个整数:");
x = in.nextInt();
y = in.nextInt();
z = in.nextInt();
//下面开始排序。
//首先找到最小数
int min=x;
if(x>y){ int temp =x;x=y; y=temp; } //交换x和y
if(x>z){ int temp=x; x=z; z=temp; }
if(y>z){
System.out.println(x+"<"+z+"<"+y) ;
}else{
System.out.println(x+"<"+y+"<"+z) ;
· }
}
先建立一个paixu 的class
import java.util.*;
public class paixu {
public static void main(String[] args) {
int[]sz=new int[3];
Scanner in=new Scanner(System.in);
System.out.println("请输入数字:");
for(int i=0;i
}
Arrays.sort(sz);
System.out.print("排序后:");
for(int i=0;i
}
}
}
public static void main(String[] args) {
int[] sz = new int[3];
Scanner in = new Scanner(System.in);
System.out.println("请输入数字:");
for (int i = 0; i < sz.length; i++) {
sz[i] = in.nextInt();
}
//Arrays.sort(sz);
for(int i =0;i
int num = sz[i];
sz[i] = sz[i+1];
sz[i+1] = num;
}
}
System.out.print("排序后:");
for (int i = 0; i < sz.length; i++) {
System.out.print(sz[i] + " ");
}
}
用sort方法