Question

for(OPV=230;OPV<245;OPV++)
{   
   for(IKW = 1.3; IKW <= 2.9; IKW += 0.1)
   {
      for(OKW = 0.01; OKW < 0.50; OKW += 0.01)
      {
         for(OPI = 0.05; OPI < 1.10; OPI += 0.01)
         {
           System.out.println( OPV+" "+IKW+" "+OKW+" "+OPI"")   
         }
      }
  }
}

我想一起打印这些数据，但我不想使用嵌套for循环创建问题，我甚至没有得到我在循环中给出的数据范围。是否有任何解决方案而不是嵌套for循环。请建议我。 @Andreas你可以看到循环是无限的我不想要我想要以下输出：

OPV   IKW OKW   OPI
230, 1.3, 0.01, 0.05
231, 1.4, 0.02, 0.06 
232, 1.5, 0.03, 0.07 
233, 1.6, 0.04, 0.08

在范围完成之后，它应该再次重复 private static final int RECORD_COUNT = 5; 我希望它应该随着我的record_count而增加。例如，如果我输入了recorder_count = 5，它应该只显示5条记录，它应该是累积的

Answer 1

伪代码解决方案就是这样，注意没有按照您的要求存在嵌套循环：

// populate data structure
List<StringBuffer> list = new LinkedList<>();
loop as you want{// your OPV for
    list.add(what you want);
}
int i = 0;
loop as you want{// your IKW for
    StringBuffer s;
    if (i < list.size()){
     s = list.get(i);
     s.append(what you want);
     list.set(i, s);
    }
    else{
        s = new StringBuffer(what you want);
        list.add(s);
    }
    i++;
}
i = 0;
loop as you want{// your OKW for
    StringBuffer s;
    if (i < list.size()){
     s = list.get(i);
     s.append(what you want);
     list.set(i, s);
    }
    else{
        s = new StringBuffer(what you want);
        list.add(s);
    }
    i++;
}
i = 0;
loop as you want{// your OPI for
    StringBuffer s;
    if (i < list.size()){
     s = list.get(i);
     s.append(what you want);
     list.set(i, s);
    }
    else{
        s = new StringBuffer(what you want);
        list.add(s);
    }
    i++;
}
// print data structure
for (StringBuffer s: list)
    System.out.println(s.toString());

Answer 2

你的意思是这样吗？

for (int i = 0; i < 200; i++) {
    int    OPV = 230  + i %  15;        // 230 - 244 by 1
    double IKW = 1.3  + i %  17 * 0.1;  // 1.3 - 2.9 by 0.1
    double OKW = 0.01 + i %  49 * 0.01; // 0.01 - 0.49 by 0.01
    double OPI = 0.05 + i % 105 * 0.01; // 0.05 - 1.09 by 0.01
    System.out.printf("%d, %.1f, %.2f, %.2f%n", OPV, IKW, OKW, OPI);
}

有关正在运行的示例，请参阅IDEONE。

<强>输出

230, 1.3, 0.01, 0.05
231, 1.4, 0.02, 0.06
232, 1.5, 0.03, 0.07
233, 1.6, 0.04, 0.08
234, 1.7, 0.05, 0.09
235, 1.8, 0.06, 0.10
236, 1.9, 0.07, 0.11
237, 2.0, 0.08, 0.12
238, 2.1, 0.09, 0.13
239, 2.2, 0.10, 0.14
240, 2.3, 0.11, 0.15
241, 2.4, 0.12, 0.16
242, 2.5, 0.13, 0.17
243, 2.6, 0.14, 0.18
244, 2.7, 0.15, 0.19
230, 2.8, 0.16, 0.20
231, 2.9, 0.17, 0.21
232, 1.3, 0.18, 0.22
233, 1.4, 0.19, 0.23
234, 1.5, 0.20, 0.24
235, 1.6, 0.21, 0.25
236, 1.7, 0.22, 0.26
237, 1.8, 0.23, 0.27
238, 1.9, 0.24, 0.28
239, 2.0, 0.25, 0.29
240, 2.1, 0.26, 0.30
241, 2.2, 0.27, 0.31
242, 2.3, 0.28, 0.32
243, 2.4, 0.29, 0.33
244, 2.5, 0.30, 0.34
230, 2.6, 0.31, 0.35
231, 2.7, 0.32, 0.36
232, 2.8, 0.33, 0.37
233, 2.9, 0.34, 0.38
234, 1.3, 0.35, 0.39
235, 1.4, 0.36, 0.40
236, 1.5, 0.37, 0.41
237, 1.6, 0.38, 0.42
238, 1.7, 0.39, 0.43
239, 1.8, 0.40, 0.44
240, 1.9, 0.41, 0.45
241, 2.0, 0.42, 0.46
242, 2.1, 0.43, 0.47
243, 2.2, 0.44, 0.48
244, 2.3, 0.45, 0.49
230, 2.4, 0.46, 0.50
231, 2.5, 0.47, 0.51
232, 2.6, 0.48, 0.52
233, 2.7, 0.49, 0.53
234, 2.8, 0.01, 0.54
235, 2.9, 0.02, 0.55
236, 1.3, 0.03, 0.56
237, 1.4, 0.04, 0.57
238, 1.5, 0.05, 0.58
239, 1.6, 0.06, 0.59
240, 1.7, 0.07, 0.60
241, 1.8, 0.08, 0.61
242, 1.9, 0.09, 0.62
243, 2.0, 0.10, 0.63
244, 2.1, 0.11, 0.64
230, 2.2, 0.12, 0.65
231, 2.3, 0.13, 0.66
232, 2.4, 0.14, 0.67
233, 2.5, 0.15, 0.68
234, 2.6, 0.16, 0.69
235, 2.7, 0.17, 0.70
236, 2.8, 0.18, 0.71
237, 2.9, 0.19, 0.72
238, 1.3, 0.20, 0.73
239, 1.4, 0.21, 0.74
240, 1.5, 0.22, 0.75
241, 1.6, 0.23, 0.76
242, 1.7, 0.24, 0.77
243, 1.8, 0.25, 0.78
244, 1.9, 0.26, 0.79
230, 2.0, 0.27, 0.80
231, 2.1, 0.28, 0.81
232, 2.2, 0.29, 0.82
233, 2.3, 0.30, 0.83
234, 2.4, 0.31, 0.84
235, 2.5, 0.32, 0.85
236, 2.6, 0.33, 0.86
237, 2.7, 0.34, 0.87
238, 2.8, 0.35, 0.88
239, 2.9, 0.36, 0.89
240, 1.3, 0.37, 0.90
241, 1.4, 0.38, 0.91
242, 1.5, 0.39, 0.92
243, 1.6, 0.40, 0.93
244, 1.7, 0.41, 0.94
230, 1.8, 0.42, 0.95
231, 1.9, 0.43, 0.96
232, 2.0, 0.44, 0.97
233, 2.1, 0.45, 0.98
234, 2.2, 0.46, 0.99
235, 2.3, 0.47, 1.00
236, 2.4, 0.48, 1.01
237, 2.5, 0.49, 1.02
238, 2.6, 0.01, 1.03
239, 2.7, 0.02, 1.04
240, 2.8, 0.03, 1.05
241, 2.9, 0.04, 1.06
242, 1.3, 0.05, 1.07
243, 1.4, 0.06, 1.08
244, 1.5, 0.07, 1.09
230, 1.6, 0.08, 0.05
231, 1.7, 0.09, 0.06
232, 1.8, 0.10, 0.07
233, 1.9, 0.11, 0.08
234, 2.0, 0.12, 0.09
235, 2.1, 0.13, 0.10
236, 2.2, 0.14, 0.11
237, 2.3, 0.15, 0.12
238, 2.4, 0.16, 0.13
239, 2.5, 0.17, 0.14
240, 2.6, 0.18, 0.15
241, 2.7, 0.19, 0.16
242, 2.8, 0.20, 0.17
243, 2.9, 0.21, 0.18
244, 1.3, 0.22, 0.19
230, 1.4, 0.23, 0.20
231, 1.5, 0.24, 0.21
232, 1.6, 0.25, 0.22
233, 1.7, 0.26, 0.23
234, 1.8, 0.27, 0.24
235, 1.9, 0.28, 0.25
236, 2.0, 0.29, 0.26
237, 2.1, 0.30, 0.27
238, 2.2, 0.31, 0.28
239, 2.3, 0.32, 0.29
240, 2.4, 0.33, 0.30
241, 2.5, 0.34, 0.31
242, 2.6, 0.35, 0.32
243, 2.7, 0.36, 0.33
244, 2.8, 0.37, 0.34
230, 2.9, 0.38, 0.35
231, 1.3, 0.39, 0.36
232, 1.4, 0.40, 0.37
233, 1.5, 0.41, 0.38
234, 1.6, 0.42, 0.39
235, 1.7, 0.43, 0.40
236, 1.8, 0.44, 0.41
237, 1.9, 0.45, 0.42
238, 2.0, 0.46, 0.43
239, 2.1, 0.47, 0.44
240, 2.2, 0.48, 0.45
241, 2.3, 0.49, 0.46
242, 2.4, 0.01, 0.47
243, 2.5, 0.02, 0.48
244, 2.6, 0.03, 0.49
230, 2.7, 0.04, 0.50
231, 2.8, 0.05, 0.51
232, 2.9, 0.06, 0.52
233, 1.3, 0.07, 0.53
234, 1.4, 0.08, 0.54
235, 1.5, 0.09, 0.55
236, 1.6, 0.10, 0.56
237, 1.7, 0.11, 0.57
238, 1.8, 0.12, 0.58
239, 1.9, 0.13, 0.59
240, 2.0, 0.14, 0.60
241, 2.1, 0.15, 0.61
242, 2.2, 0.16, 0.62
243, 2.3, 0.17, 0.63
244, 2.4, 0.18, 0.64
230, 2.5, 0.19, 0.65
231, 2.6, 0.20, 0.66
232, 2.7, 0.21, 0.67
233, 2.8, 0.22, 0.68
234, 2.9, 0.23, 0.69
235, 1.3, 0.24, 0.70
236, 1.4, 0.25, 0.71
237, 1.5, 0.26, 0.72
238, 1.6, 0.27, 0.73
239, 1.7, 0.28, 0.74
240, 1.8, 0.29, 0.75
241, 1.9, 0.30, 0.76
242, 2.0, 0.31, 0.77
243, 2.1, 0.32, 0.78
244, 2.2, 0.33, 0.79
230, 2.3, 0.34, 0.80
231, 2.4, 0.35, 0.81
232, 2.5, 0.36, 0.82
233, 2.6, 0.37, 0.83
234, 2.7, 0.38, 0.84
235, 2.8, 0.39, 0.85
236, 2.9, 0.40, 0.86
237, 1.3, 0.41, 0.87
238, 1.4, 0.42, 0.88
239, 1.5, 0.43, 0.89
240, 1.6, 0.44, 0.90
241, 1.7, 0.45, 0.91
242, 1.8, 0.46, 0.92
243, 1.9, 0.47, 0.93
244, 2.0, 0.48, 0.94
230, 2.1, 0.49, 0.95
231, 2.2, 0.01, 0.96
232, 2.3, 0.02, 0.97
233, 2.4, 0.03, 0.98
234, 2.5, 0.04, 0.99

嵌套'For'循环的替代解决方案

2 个答案: