扫描仪不要求输入字符串

Question

In the below code:

secondI = scan.nextInt();
System.out.println("double");
secondD = scan.nextDouble();
System.out.println("string");
secondS = scan.nextLine();

After entering the double value, it is skipping the string entry part. How can I fix this?

Answer 1

secondI = scan.nextInt();
System.out.println("double");
secondD = scan.nextDouble();

scan.nextLine();

System.out.println("string");
secondS = scan.nextLine();

You need to have this extra nextline statement which consumes the remaining section of that line which you entered for the double value.

Answer 2

Use

secondS = scan.next();

instead of

secondS = scan.nextLine();

Answer 3

Please see the documentation for Scanner.nextLine() .

Advances this scanner past the current line and returns the input that was skipped.

Try using other methods of the Scanner class such as Scanner.next()