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EditText entername = (EditText)findViewById(R.id.enter_name);
// this line convert it to String
String q =entername.getText().toString();
//why it is not working in this way ???
String d = (String) entername.getText();
The method getText() doesn't return a String, but an Editable.
Note that an Editable doesn't extend String, but it implements the CharSequence interface, so it can be used in many methods that accept CharSequence.
Because EditText#getText returns an Editable, not a String.
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Suppose I have a string
String string = "1.18";
I want to multiply the above string with another string that is
String f1= "2.54";
What would I have to do to multiply these two values? I looked this up online and came across a function called Integer.ParseInt() that converts the string to it's numerical values, so i tried
System.out.println(Integer.parseInt(string) * Integer.parseInt(f1));
It doesn't work. I want to know what am I doing wrong. What's the proper way of doing it? I would find it very helpful if someone could help me understand, thanks!
Try Double.parseDouble(string)
Integer is not for decimal number. Use Double.parseDouble() or use BigDecimal type if you need exact result.
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I need some help to replace all the single quotes in a string.
This is my string: The State of the water = 'ICE'
I want to remove the single quotes around ICE.
str = str.replaceAll("\'","");
Use this
String str = "The State of the water = 'ICE'";
str = str.replaceAll("'","");
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For example, I have my main method as well as the method returnOdds(original), that returns the integer array "odd"
How would I print the elements of this array in the main method? With a for loop?
A for loop would work. If you don't care about the format, though, a simpler solution might be to use Arrays.toString, which will convert in the form "[elem1, elem2, ..., elemn]".
"With a for loop?"
answer : "yes"
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String[] arraylist = {"0","0","0","0","0","0","0"};
but now I want to replace inside the array above to 1, to make it like this
String[] arraylist = {"0","0","0","1","0","0","0"};
Once try follow if you know position you want to change
arraylist[3]="1";
Hope this will helps you.
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Still getting the red bar. What's wrong with the AssertEquals?
public void testFindEmployeeByID() {
StubEmployeeRepositoryImpl result = new StubEmployeeRepositoryImpl(dataSource);
List<Employee> emp = result.findEmployeesByName("John", "X");
assertEquals("John"+"X", result.findEmployeesByName("John", "X"));
}
Probably assertEquals doesn't know how to compare List and String...