2019独角兽企业重金招聘Python工程师标准>>> 
import java.util.Scanner;
public class Main3 {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int num1 = in.nextInt();
String oper = in.next();
int num2 = in.nextInt();
StringBuilder sb = new StringBuilder();
sb.append(int2String(num1));
sb.append(" ");
sb.append(oper);
sb.append(" ");
sb.append(int2String(num2));
sb.append(" = ");
sb.append(string2String(getResult(num1, num2, oper.charAt(0))));
String expression = sb.toString();
for (int i = 0; i < 5; i++) { // five lines
for (int index = 0, length = expression.length(); index < length; index++) {
char[][] g = getGByChar(expression.charAt(index));
for( int j = 0, size = g[i].length; j < size; j++) {
System.out.print(g[i][j]);
}
if(index == length -1) {
System.out.print("\n");
}
}
}
}
static char[][] getGByChar(char ch) {
switch (ch) {
case '0': return g0;
case '1': return g1;
case '2': return g2;
case '3': return g3;
case '4': return g4;
case '5': return g5;
case '6': return g6;
case '7': return g7;
case '8': return g8;
case '9': return g9;
case '+': return gAdd;
case '-': return gReduce;
case '*': return gMutil;
case '/': return gDivode;
case '.': return gPoint;
case '=': return gEqual;
}
return gBlank;
}
/*
* 整数位与位之间补充空格
*/
static String int2String(int i) {
String result = i > 0 ? "" : "0";
while (i > 0) {
if ("".equals(result))
result = (i % 10) + result;
else result = (i % 10) + " " + result;
i /= 10;
}
return result;
}
/*
* 字符与字符之间补充空格
*/
static String string2String(String str) {
StringBuilder sb = new StringBuilder();
for (int index = 0, length = str.length(); index < length; index ++) {
sb.append(str.charAt(index));
if (index != length -1) {
sb.append(" ");
}
}
return sb.toString();
}
static String getResult(int num1, int num2, char oper) {
if ('+' == oper) {
return num1 + num2 + "";
} else if ('-' == oper) {
return num1 - num2 + "";
} else if ('*' == oper) {
return num1 * num2 + "";
} else {
if (num1 % num2 == 0) return num1 / num2 + "";
return ((double)Math.round((num1 * 1.0 / num2) * 100 ) / 100) + "";
}
}
static char gAdd[][] = {
{' ',' ',' '},
{' ','*',' '},
{'*','*','*'},
{' ','*',' '},
{' ',' ',' '}
};
static char gReduce[][] = {
{' ',' ',' '},
{' ',' ',' '},
{'*','*','*'},
{' ',' ',' '},
{' ',' ',' '}
};
static char gMutil[][] = {
{' ',' ',' '},
{'*',' ','*'},
{' ','*',' '},
{'*',' ','*'},
{' ',' ',' '}
};
static char gDivode[][] = {
{' ',' ',' '},
{' ',' ','*'},
{' ','*',' '},
{'*',' ',' '},
{' ',' ',' '}
};
static char gEqual[][] = { //5 x 4
{' ',' ',' ',' '},
{'*','*','*','*'},
{' ',' ',' ',' '},
{'*','*','*','*'},
{' ',' ',' ',' '}
};
static char gPoint[][] = { //5 x 2
{' ',' '},
{' ',' '},
{' ',' '},
{'*','*'},
{'*','*'}
};
static char gBlank[][] = { //5 x 1
{' '},
{' '},
{' '},
{' '},
{' '}
};
static char g1[][] = { //5 x 1
{'*'},
{'*'},
{'*'},
{'*'},
{'*'}
};
static char g2[][] = {
{'*','*','*'},
{' ',' ','*'},
{'*','*','*'},
{'*',' ',' '},
{'*','*','*'}
};
static char g3[][] = {
{'*','*','*'},
{' ',' ','*'},
{'*','*','*'},
{' ',' ','*'},
{'*','*','*'}
};
static char g4[][] = {
{'*',' ','*'},
{'*',' ','*'},
{'*','*','*'},
{' ',' ','*'},
{' ',' ','*'}
};
static char g5[][] = {
{'*','*','*'},
{'*',' ',' '},
{'*','*','*'},
{' ',' ','*'},
{'*','*','*'}
};
static char g6[][] = {
{'*','*','*'},
{'*',' ',' '},
{'*','*','*'},
{'*',' ','*'},
{'*','*','*'}
};
static char g7[][] = {
{'*','*','*'},
{' ',' ','*'},
{' ',' ','*'},
{' ',' ','*'},
{' ',' ','*'}
};
static char g8[][] = {
{'*','*','*'},
{'*',' ','*'},
{'*','*','*'},
{'*',' ','*'},
{'*','*','*'}
};
static char g9[][] = {
{'*','*','*'},
{'*',' ','*'},
{'*','*','*'},
{' ',' ','*'},
{'*','*','*'}
};
static char g0[][] = {
{'*','*','*'},
{'*',' ','*'},
{'*',' ','*'},
{'*',' ','*'},
{'*','*','*'}
};
}
截图如图：
