帮忙看看，怎么优化下 if else 太多了

Question

int month=4,count=15000;//假定取值
float z;
float bl[][]={{0.35f,0.29f,0.22f,0.14f},{0.5f,0.45f,0.4f,0.35f},{0.6f,0.55f,0.5f,0.45f},{0.8f,0.75f,0.7f,0.65f},{1.2f,1.16f,1.13f,1.11f}};
{
if (count>=20000)

{
if (month<=3&&month>=1)
{
z=bl[0][0];
}
else if (month<=6&&month>=4)
{
z=bl[0][1];
}
else if (month<=9&&month>=7)
{
z=bl[0][2];
}
else 
{
z=bl[0][3];
}
System.out.print("基数工资为"+z*count);
}
else if (count>=14000&&count<20000)
{
if (month<=3&&month>=1)
{
z=bl[1][0];
}
else if (month<=6&&month>=4)
{
z=bl[1][1];
}
else if (month<=9&&month>=7)
{
z=bl[1][2];
}
else 
{
z=bl[1][3];
}
System.out.print("基数工资为"+z*count);
}
else if (count>=9000&&count<14000)
{
if (month<=3&&month>=1)
{
z=bl[2][0];
}
else if (month<=6&&month>=4)
{
z=bl[2][1];
}
else if (month<=9&&month>=7)
{
z=bl[2][2];
}
else 
{
z=bl[2][3];
}
System.out.print("基数工资为"+z*count);
}
else if (count>=5000&&count<9000)
{
if (month<=3&&month>=1)
{
z=bl[3][0];
}
else if (month<=6&&month>=4)
{
z=bl[3][1];
}
else if (month<=9&&month>=7)
{
z=bl[3][2];
}
else 
{
z=bl[3][3];
}
System.out.print("基数工资为"+z*count);
}
else
{
if (month<=3&&month>=1)
{
z=bl[4][0];
}
else if (month<=6&&month>=4)
{
z=bl[4][1];
}
else if (month<=9&&month>=7)
{
z=bl[4][2];
}
else 
{
z=bl[4][3];
}
System.out.print("基数工资为"+z*count);
}
}

Answer 1

int month=4,count=15000;//假定取值
float z;
float bl[][]={{0.35f,0.29f,0.22f,0.14f},{0.5f,0.45f,0.4f,0.35f},{0.6f,0.55f,0.5f,0.45f},{0.8f,0.75f,0.7f,0.65f},{1.2f,1.16f,1.13f,1.11f}};int countType = getCountType(count);
z = getZValue(month, countType, bl);
System.out.print("基数工资为" + z * count);private int getCountType(int count) {
    if (count >= 20000)
        return 0;
    else if (count >= 14000 && count < 20000)
        return 1;
    else if (count >= 9000 && count < 14000)
return 2;
    else if (count >= 5000 && count < 9000)
return 3;
    else
return 4;
}private float getZValue(int month, int countType, float[][] bl) {
    if (month <= 3 && month >= 1)
return bl[countType][0];
    else if (month <= 6 && month >= 4)
return bl[countType][1];
    else if (month <= 9 && month >= 7)
return bl[countType][2];
    else
return bl[countType][3];
}

Answer 2

//把选择放在一个方法里面封装起来就可以简化了
public class test3
{   
private static float bl[][]={{0.35f,0.29f,0.22f,0.14f},
{0.5f,0.45f,0.4f,0.35f},{0.6f,0.55f,0.5f,0.45f},
{0.8f,0.75f,0.7f,0.65f},{1.2f,1.16f,1.13f,1.11f}};    public static void main(String[] args) {
     int month=4,count=15000;//假定取值
     if(count>=20000)
     jianHua(month , count , 0);
     else if(count>=14000)
     jianHua(month , count , 1);
     else if(count>=9000)
     jianHua(month , count , 2);
     else if(count>=5000)
     jianHua(month , count , 3);
     else
     jianHua(month , count , 4);
    
}
    
    public static void jianHua(int month ,int count , int i) {
     float z = 0 ;
     if (month<=3&&month>=1)
     {
     z=bl[i][0];
     }
     else if (month<=6&&month>=4)
     {
     z=bl[i][1];
     }
     else if (month<=9&&month>=7)
     {
     z=bl[i][2];
     }
     else 
     {
     z=bl[i][3];
     }
     System.out.print("基数工资为"+z*count);
     }
}
    

Answer 3

如果不想用else if
那么就建议使用case
case给人的感觉直观