Java中的 RuleBasedCollator equals() 方法及示例
Java.text.Collator 类的equals()方法用于检查两个指定的字符串是否相同。
句法:
public boolean equals(String source,
String target)
参数:此方法采用两个字符串,将在它们之间进行比较。
返回值:如果两个字符串相等,则返回true ,否则返回false 。
以下是说明equals()方法的示例:
示例 1:
Java
// Java program to demonstrate
// equals() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing
// RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator("< a< b< c< d");
// Creating an initializing
// object for comparison
String obj1 = "a";
// Creating an initializing
// Object for comparison
String obj2 = "A";
// compare both object
// using equals() method
boolean i = col.equals(obj1, obj2);
// display result
if (i)
System.out.println(obj1
+ " is equal to "
+ obj2);
else
System.out.println(obj1
+ " is not equal to "
+ obj2);
}
catch (ParseException e) {
System.out.println(e);
}
}
}
Java
// Java program to demonstrate
// equals() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing
// RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator("< a< b< c< d");
// Creating an initializing
// object for comparison
String obj1 = "a";
// Creating an initializing
// Object for comparison
String obj2 = "a";
// compare both object
// using equals() method
boolean i = col.equals(obj1, obj2);
// display result
if (i)
System.out.println(obj1
+ " is equal to "
+ obj2);
else
System.out.println(obj1
+ " is not equal to "
+ obj2);
}
catch (ParseException e) {
System.out.println(e);
}
}
}
输出:
a is not equal to A
示例 2:
Java
// Java program to demonstrate
// equals() method
import java.text.*;
import java.util.*;
import java.io.*;
public class GFG {
public static void main(String[] argv)
{
try {
// Creating and initializing
// RuleBasedCollator Object
RuleBasedCollator col
= new RuleBasedCollator("< a< b< c< d");
// Creating an initializing
// object for comparison
String obj1 = "a";
// Creating an initializing
// Object for comparison
String obj2 = "a";
// compare both object
// using equals() method
boolean i = col.equals(obj1, obj2);
// display result
if (i)
System.out.println(obj1
+ " is equal to "
+ obj2);
else
System.out.println(obj1
+ " is not equal to "
+ obj2);
}
catch (ParseException e) {
System.out.println(e);
}
}
}
输出:
a is equal to a
参考: https://docs.oracle.com/javase/9/docs/api/ Java/text/RuleBasedCollator.html#equals-java.lang.Object-