Question

我需要一些关于如何对数组内部值进行排序的指导。

因此，对于X和Z加速度计读数，我有2 Arrays。我想将它们分为4类优秀，良好，平均和差。每个类别都有自己的数组。

在对X和Z arrays的所有值进行排序并将值1和0插入到每个优秀，良好，平均和差阵列之后，我想通过最高等级来自4个类别的值（在每个类别数组中添加数据）。

问题在于if-else statement没有进入下一个else if，即使读数小于1且大于-1。所以到那时为止，即使我疯狂地摇晃我的手机，我总是获得“优秀”等级。

以下是范围：

优秀：超过-1且低于1
好：小于-2且大于2
平均值：小于-4且小于4
差：小于-6且大于6

for(int i = 0; i < ArrayX.size(); i++){
    //  sumX = (sumX + Integer.parseInt(String.valueOf(ArrayX.get(i))));
    //  sumY = (sumY + Integer.parseInt(String.valueOf(ArrayY.get(i))));
    X = String.valueOf(ArrayX.get(i));
    Y = String.valueOf(ArrayY.get(i));
    Z = String.valueOf(ArrayZ.get(i));
    float valX = Float.parseFloat(X);
    float valZ = Float.parseFloat(Z);


    if(valX<excellentRate||valX>(-excellentRate))
    {
        ArrayPoor.add(0);
        ArrayAverage.add(0);
        ArrayGood.add(0);
        ArrayExcellent.add(1);
    }
    else if(valX<=goodRate||valX>=(-goodRate)){
        ArrayPoor.add(0);
        ArrayAverage.add(0);
        ArrayGood.add(1);
        ArrayExcellent.add(0);
    }
    else if(valX<=averageRate||valX>=(-averageRate)){
        ArrayPoor.add(0);
        ArrayAverage.add(1);
        ArrayGood.add(0);
        ArrayExcellent.add(0);
    }
    else if(valX<poorRate||valX>(-poorRate)){
        ArrayPoor.add(1);
        ArrayAverage.add(0);
        ArrayGood.add(0);
        ArrayExcellent.add(0);
    }


    if(valZ<(0.00f)||valZ>0.00f)
    {
        ArrayPoor.add(0);
        ArrayAverage.add(0);
        ArrayGood.add(0);
        ArrayExcellent.add(1);
    }
    else if(valZ<=(-2.00f)||valZ>=2.00f){
        ArrayPoor.add(0);
        ArrayAverage.add(0);
        ArrayGood.add(1);
        ArrayExcellent.add(0);
    }
    else if(valZ<=(-4.00f)||valZ>=4.00f){
        ArrayPoor.add(0);
        ArrayAverage.add(1);
        ArrayGood.add(0);
        ArrayExcellent.add(0);
    }
    else if(valZ<(-6.00f)||valZ>4.00f){
        ArrayPoor.add(1);
        ArrayAverage.add(0);
        ArrayGood.add(0);
        ArrayExcellent.add(0);
    }



    //codes for sending testSet Details             
    System.out.println(">>>>>>>>>>>>>>>>>>> "+ " TS= " +TS_ID + " TSA= "+ TSA_ID  + X + " " + Y + " " + Z);
    String jsonOutput = "http://172.20.34.112/IBBTS_WebService_MobileAndDevice/Service1.asmx/setAccReadings";               

    if (isOnline()) {
        requestAccelData(jsonOutput);
    }else {
        Toast.makeText(ResultSend.this, "Network isn't available", Toast.LENGTH_LONG).show();
    }
}


for (int j=0; j<ArrayExcellent.size(); j++){
    sumPoor = sumPoor +Integer.parseInt(String.valueOf(ArrayPoor.get(j)));
    sumAverage = sumAverage + Integer.parseInt(String.valueOf(ArrayAverage.get(j)));
    sumGood = sumGood + Integer.parseInt(String.valueOf(ArrayGood.get(j)));
    sumExcellent = sumExcellent + Integer.parseInt(String.valueOf(ArrayExcellent.get(j)));
}

if(sumExcellent>=sumGood && sumExcellent>=sumAverage && sumExcellent>=sumPoor )
    grade ="Excellent";
else if(sumGood>=sumExcellent && sumGood>=sumAverage && sumGood>=sumPoor){
    grade ="Good";
}
else if(sumAverage>=sumExcellent && sumAverage>=sumGood && sumAverage>=sumPoor){
    grade ="Average";
}
else if(sumPoor>=sumExcellent && sumPoor>=sumGood && sumPoor>=sumAverage){
    grade ="Poor";
}

Intent intSummary = new Intent(ResultSend.this, ResultSummary.class);
intSummary.putExtra("gradePassed", grade);
intSummary.putExtra("TestName", TestName);
startActivity(intSummary);
}

我也试过过这样的其他方法：

checker = compare(valX, excellentRateX);
if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(0);
    ArrayGood.add(0);
    ArrayExcellent.add(1);
    checker = 0;
    checker = compare(valX, goodRateX);
}
else if(checker == -1){
    checker = compare(valX, goodRateX);
}
else if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(0);
    ArrayGood.add(1);
    ArrayExcellent.add(0);
    checker = 0;
    checker = compare(valX, averageRateX);
}
else if(checker == -1){
    checker = compare(valX, averageRateX);
}
else if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(1);
    ArrayGood.add(0);
    ArrayExcellent.add(0);
    checker = 0;
    checker = compare(valX, poorRateX);
}
else if(checker == -1){
    checker = compare(valX, poorRateX);
}
else if(checker == 1){
    ArrayPoor.add(1);
    ArrayAverage.add(0);
    ArrayGood.add(0);
    ArrayExcellent.add(0);
    checker = 0;
}


checker = compare(valZ, excellentRateZ);
if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(0);
    ArrayGood.add(0);
    ArrayExcellent.add(1);
    checker = 0;
    checker = compare(valZ, goodRateZ);
}
else if(checker == -1){
    checker = compare(valZ, goodRateX);
}
else if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(0);
    ArrayGood.add(1);
    ArrayExcellent.add(0);
    checker = 0;
    checker = compare(valZ, averageRateZ);
}
else if(checker == -1){
    checker = compare(valZ, averageRateZ);
}
else if(checker == 1){
    ArrayPoor.add(0);
    ArrayAverage.add(1);
    ArrayGood.add(0);
    ArrayExcellent.add(0);
    checker = 0;
    checker = compare(valZ, poorRateZ);
}
else if(checker == -1){
    checker = compare(valZ, poorRateZ);
}
else if(checker == 1){
    ArrayPoor.add(1);
    ArrayAverage.add(0);
    ArrayGood.add(0);
    ArrayExcellent.add(0);
    checker = 0;
} 

public static int compare(float f1, float f2) {
   if (f1 < f2 && f1 > -f2){
        return 1;
        } // value is within the specifications
   else{
        return -1;
        } // value is outside the specifications
}

根据以下建议编辑代码，现在它正在运行！

            if(valX <excellentRateX && valX >(-excellentRateX))
            {
                ArrayPoor.add(0);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(1);
            }
            else if(valX <= goodRateX && valX >= (-goodRateX)){
                ArrayPoor.add(0);
                ArrayAverage.add(0);
                ArrayGood.add(1);
                ArrayExcellent.add(0);
            }
            else if(valX <= averageRateX && valX>=(-averageRateX)){
                ArrayPoor.add(0);
                ArrayAverage.add(1);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            }
            else if(valX <= poorRateX && valX >= (-poorRateX)){
                ArrayPoor.add(1);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            }
            else {
                ArrayPoor.add(1);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            }


            if(valZ<excellentRateZ  && valZ>-excellentRateZ)
            {
                ArrayPoor.add(0);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(1);
            }
            else if(valZ <= goodRateZ && valZ >= (-goodRateZ)){
                ArrayPoor.add(0);
                ArrayAverage.add(0);
                ArrayGood.add(1);
                ArrayExcellent.add(0);
            }
            else if(valZ <= averageRateZ && valZ>=(-averageRateZ)){
                ArrayPoor.add(0);
                ArrayAverage.add(1);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            }
            else if(valZ < poorRateZ && valZ>(-poorRateZ)){
                ArrayPoor.add(1);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            } 
            else {
                ArrayPoor.add(1);
                ArrayAverage.add(0);
                ArrayGood.add(0);
                ArrayExcellent.add(0);
            }

Answer 1

在第一个代码段中，我可以看到以下条件：

 if(valX<excellentRate||valX>(-excellentRate))

如果excellentRate = 1则将其解释为

如果valX小于1或valX大于-1

由于每个实数都是“小于1或大于-1”，因此这种情况总是如此。

你应该使用：

if(valX<excellentRate && valX>(-excellentRate))

对其他if语句也这样做。

P.S。：我的声誉很低，所以不能在评论中指出这一点，因此我正在写一个答案。

排序算法建议if-else

1 个答案: