Question

How to use for loop with float numbers in Java

Answer 1

public class MyClass {
    public static void main(String args[]) {
        for (float i = 0.01f; i <= 0.5f; i = i + 0.01f) {
            System.out.println(i);   
        } 
    }
}
 
 
 
/*
run:
 
0.01
0.02
0.03
0.04
0.049999997
0.059999995
0.06999999
0.07999999
0.08999999
0.09999999
0.109999985
0.11999998
0.12999998
0.13999999
0.14999999
0.16
0.17
0.18
0.19000001
0.20000002
0.21000002
0.22000003
0.23000003
0.24000004
0.25000003
0.26000002
0.27
0.28
0.29
0.29999998
0.30999997
0.31999996
0.32999995
0.33999994
0.34999993
0.35999992
0.36999992
0.3799999
0.3899999
0.3999999
0.40999988
0.41999987
0.42999986
0.43999985
0.44999984
0.45999983
0.46999982
0.4799998
0.4899998
0.4999998
 
*/

 

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Answer 2

public class MyClass {
    public static void main(String args[]) {
        float sum = 0;
        
        for (float i = 0.01f; i <= 0.7f; i = i + 0.01f) {
            sum += i;
        }
        System.out.println(sum);   
    }
}
 
 
 
 
/*
run:
 
24.849997
 
*/

 

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Answer 3

public class MyClass {
    public static void main(String args[]) {
        for (double i = 0.01f; i <= 0.5f; i = i + 0.01f) {
            System.out.println(i);   
        } 
    }
}
 
 
 
/*
run:
 
0.009999999776482582
0.019999999552965164
0.029999999329447746
0.03999999910593033
0.04999999888241291
0.05999999865889549
0.06999999843537807
0.07999999821186066
0.08999999798834324
0.09999999776482582
0.1099999975413084
0.11999999731779099
0.12999999709427357
0.13999999687075615
0.14999999664723873
0.1599999964237213
0.1699999962002039
0.17999999597668648
0.18999999575316906
0.19999999552965164
0.20999999530613422
0.2199999950826168
0.2299999948590994
0.23999999463558197
0.24999999441206455
0.25999999418854713
0.2699999939650297
0.2799999937415123
0.2899999935179949
0.29999999329447746
0.30999999307096004
0.3199999928474426
0.3299999926239252
0.3399999924004078
0.3499999921768904
0.35999999195337296
0.36999999172985554
0.3799999915063381
0.3899999912828207
0.3999999910593033
0.40999999083578587
0.41999999061226845
0.42999999038875103
0.4399999901652336
0.4499999899417162
0.4599999897181988
0.46999998949468136
0.47999998927116394
0.4899999890476465
0.4999999888241291
 
*/

 

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