如何实现从键盘输入三个数分别赋给三个变量？

[oostart]

题目是这样的：编写java Application程序，实现从键盘输入三个正整数，判断其能否构成一个三角形。
谢谢！

[believefym]

import java.io.*;

public class Triangle {
private int[] borders;

public Triangle(int i,int j,int k){
borders = new int[3];
borders[0] = i;
borders[1] = j;
borders[2] = k;
}

public Triangle(int a[]){
borders = new int[3];
System.arraycopy(a,0,borders,0,a.length);
}

public boolean test(){
for(int i=0; i<3; i++){
if(borders[i]+borders[(i+1)%3] <= borders[(i+2)%3])
return false;
if(borders[i]-borders[(i+1)%3] >= borders[(i+2)%3])
return false;
}

return true;
}

public static void main(String args[]){
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
int i=2;
int[] borders = new int[3];

try{
while(i>=0){
borders[i] = Integer.parseInt(br.readLine());
i--;
}
}catch(IOException e){
e.printStackTrace();
}

System.out.println(new Triangle(borders).test());
}
}