Java method to convert a string into an integer: first enter a numeric string; then convert it through [Integer.parseInt()], the code is [String s="123456";int b=Integer.parseInt (s);].
The operating environment of this tutorial: windows7 system, java10 version, DELL G3 computer. This method is suitable for all brands of computers.
Java method of converting a string into an integer:
In the first step, enter the
“ String s="123456"; int b=Integer.parseInt(s); System.out.println(b); ”
code to convert the string a into an integer b , as shown in the figure below:
After running the program in the second step, you can see that the string is successfully converted into the integer type 123456, as shown in the figure below:
In the third step, we can also convert through Integer.valueOf(s), as shown in the figure below:
The fourth step Run the program and you can see that the string is successfully converted into integer data, as shown in the figure below:
The fifth step should be noted that using the above two methods to convert characters When converting a string into an integer, the string needs to be a numeric string, otherwise an error will be reported, as shown in the following figure:
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