我随机输入几个数字,如何能在1位数前加0,就像福彩的双色球一样的表现形式.我的代码如下:
public class TestRandom {
public static void main(String [] args){
Random r=new Random();
StringBuffer s=new StringBuffer("");
for(int i=0;i<7;i++){
s.append(r.nextInt(36)+" ");
}
System.out.print(s);
}}希望高手赐教
public class TestRandom {
public static void main(String [] args){
Random r=new Random();
StringBuffer s=new StringBuffer("");
for(int i=0;i<7;i++){
s.append(r.nextInt(36)+" ");
}
System.out.print(s);
}}希望高手赐教
public static void main(String [] args){
Random r=new Random();
StringBuffer s=new StringBuffer("");
String str = null;
for(int i=0;i<7;i++){
str = String.valueOf(r.nextInt(36);
if(str.length() == 1){
str = "0"+str;
}
s.append(str +" ");
}
System.out.print(s);
}}