Question

java循环输出ABCD等腰三角形

Answer 1

int h = 5; //行数
int x = 65; //开始字符
for(int i=1;i<=h;i++){
for(int j=1;j<h*2;j++){
if(j>h-i&&j<h+i){
System.out.print(j>h-1?(char)x--:(char)x++);
}else{
System.out.print(" ");
}
}
x = 65;
System.out.print("\n");
}

Answer 2

public class Isosceles {

public static void main(String[] arg){
int i=0;
int h=7;
while(i++<h){
for(int j=0;j<2*h;j++){
int k=64+i;
int l=Math.abs(j-h);
System.out.print((k-l>64 && k-l<91)?(char)(k-l):" ");
}
System.out.println();
}
}

}