Answer Posted / yun hin

class triangle{
public static void main(String args[]){
int height = 5;

for(int i=1;i<=height;i++){
for(int j=1;j<=(height-i);j++){
System.out.print(" ");
}
for(int k=1;k<i;k++){
System.out.print(k + " ");
}
System.out.print(i);
System.out.println();
}
}
}

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