Java 中的扫描仪基数()方法，示例
原文:https://www . geesforgeks . org/scanner-radix-method-in-Java-with-examples/
Java . util . scanner类的基数()方法返回该扫描仪的默认基数。
语法:
public int radix()
返回值:该函数返回该扫描仪的默认基数。
以下程序说明了上述功能:
程序 1:
// Java program to illustrate the
// radix() method of Scanner class in Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "Geeksforgeeks has Scanner methods";
// create a new scanner
// with the specified String Object
Scanner scanner = new Scanner(s);
// print a line of the scanner
System.out.println("Scanner String:\n"
+ scanner.nextLine());
// print the default radix
System.out.println("Default Radix value: "
+ scanner.radix());
// close the scanner
scanner.close();
}
}
输出:
Scanner String:
Geeksforgeeks has Scanner methods
Default Radix value: 10
程序二:
// Java program to illustrate the
// radix() method of Scanner class in Java
import java.util.*;
public class GFG1 {
public static void main(String[] argv)
throws Exception
{
String s = "Geeksforgeeks";
// create a new scanner
// with the specified String Object
Scanner scanner = new Scanner(s);
// print a line of the scanner
System.out.println("Scanner String: "
+ scanner.nextLine());
// print the default radix
System.out.println("Default Radix value: "
+ scanner.radix());
// change the radix of this scanner
scanner.useRadix(30);
System.out.println("Radix changed to 30");
// print the default radix
System.out.println("Default Radix value: "
+ scanner.radix());
// close the scanner
scanner.close();
}
}
输出:
Scanner String: Geeksforgeeks
Default Radix value: 10
Radix changed to 30
Default Radix value: 30
参考:https://docs . Oracle . com/javase/7/docs/API/Java/util/scanner . html # radix()
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