Java offsetByCodePoints 方法

Java 的 offsetByCodePoints 方法是 String 方法之一，用于返回字符串中相对于指定索引偏移 codePointOffset 个代码点的索引。String offsetByCodePoints 的基本语法如下所示。

public int offsetByCodePoints(int index, int codePointOffset) // It will return the integer Value as Output

//To use in program
String_Object.offsetByCodePoints(int index, int codePointOffset)

• index：请指定要偏移的索引。
• codePointOffset：请指定代码点偏移量。

Java offsetByCodePoints 方法示例

String.offsetByCodepoints 方法返回字符串中相对于指定索引偏移 codePointOffset 个代码点的索引。在此 Java 程序中，我们将找到相同的内容。

package StringFunctions;

public class offsetByCodePointsMethod {
	public static void main(String[] args) {
		String str = "Hello";
		int a = str.offsetByCodePoints(1, 2);
		int b = "Tutorial GateWay".offsetByCodePoints(1, 12);
		int c = "Free Java Tutorial at Tutorial GateWay".offsetByCodePoints(10, 22);
		int d = "Java Programming Language".offsetByCodePoints(5, 12);
		
		System.out.println("The New Index of a String Str = " + a);
		System.out.println("The New Index  = " + b);
		System.out.println("The New Index  = " + c);
		System.out.println("The New Index  = " + d);
	}
}

在此 Java 程序中，首先，我们声明 String 变量并使用以下语句为其赋值。

String str = "Hello";

以下语句调用 public int offsetByCodePoints(int index, int codePointOffset) 方法来查找上述字符串中的索引。

int a = str.offsetByCodePoints(1, 2);

接下来，我们直接在字符串上应用 offsetByCodepoints String 方法，然后将这些字符串的新索引值赋给整数变量 b、c 和 d。

int b = "Tutorial GateWay".offsetByCodePoints(1, 12);
int c = "Free Java Tutorial at Tutorial GateWay".offsetByCodePoints(10, 22);
int d = "Java Programming Language".offsetByCodePoints(5, 12);

以下 Java System.out.println 语句将打印输出。