Java Timestamp compareTo() 方法

2025 年 3 月 25 日 | 阅读 2 分钟

Timestamp 类的 compareTo() 方法将此 Timestamp 对象与给定的 Timestamp 对象或给定的日期对象进行比较。

语法

public int compareTo(Timestamp ts)
public int compareTo(Date o)

参数

参数 'ts' 表示要与此 Timespan 对象进行比较的 Timestamp 对象。
参数 'o' 表示要与此 Timespan 对象进行比较的日期。

返回值

Timestamp 类的 compareTo() 方法返回

如果此 Timestamp 对象与给定的 Timestamp 对象相等，则返回整数值 0。
如果此 Timespan 对象早于给定的参数，则返回小于 0 的值。
如果此 Timespan 对象晚于给定的参数，则返回大于 0 的值。

示例 1

import java.sql.Timestamp;
public class JavaTimestampCompareToExample1 {
    public static void main(String[] args) {
        Timestamp ts1 = Timestamp.valueOf("2018-09-01 09:01:15");
        Timestamp ts2 = Timestamp.valueOf("2018-09-01 09:01:16");
        //compares ts1 with ts2
        int b3 = ts1.compareTo(ts2);
        if(b3==0){
            System.out.println("Both values are equal");
        }
        else if(b3>0){
            System.out.println("TimeSpan1 value is greater");
        }
        else{
            System.out.println("TimeSpan2 value is greater");
        }
    }
}

输出

TimeSpan2 value is greater

示例 2

import java.sql.Timestamp;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;
class BirthTime {
    static int i = 1;
    public String name;
    Timestamp ts1;
    BirthTime(String name, Timestamp ts1 ) {
        this.name = name;
        this.ts1=ts1;
    }
    public String toString(){
        return this.name;
    }
}
public class JavaTimestampCompareToExample2 {
    public static void main(String[] args) {
        BirthTime name1 = new BirthTime("Reema", Timestamp.valueOf("2018-09-01 09:01:15"));
        BirthTime name2 = new BirthTime("Geetanjali",Timestamp.valueOf("2018-09-01 09:01:18"));
        int capacity = 100;
        BlockingQueue<BirthTime> queue = new ArrayBlockingQueue<BirthTime>(capacity);
        queue.add(name1);
        queue.add(name2);
            if(queue.poll().ts1.compareTo(queue.poll().ts1)>0){
                System.out.println("Reema's birthTime is greater than Geetanjali");
            }
            else{
                System.out.println("Geetanjali's birthTime is greater than Reema");
            }
    }
}

输出

Geetanjali's birthTime is greater than Reema

示例 3

import java.sql.Timestamp;
import java.util.Date;
public class JavaTimestampCompareToExample3 {
    public static void main(String[] args) {
        Timestamp ts1 = Timestamp.valueOf("2018-09-03 09:01:15");
        System.out.println("Expire Timespan : "+ts1);
        Date date = new Date();
        System.out.println("Today date : "+date);
        //compares ts1 with date
        int b3 = ts1.compareTo(date);
        if(b3==0){
            System.out.println("Your plan will expire today ");
        }
        else if(b3>0){
            System.out.println("Your plan has not expired. You can still avail our facility.");
        }
        else{
            System.out.println("oops!Your plan has expired\nRecharge fast.");
        }
    }
}

输出

Expire Timespan: 2018-09-03 09:01:15.0
Today date: Sun Sep 02 20:27:12 IST 2018
Your plan has not expired. You can still avail our facility.

下一主题Java-timestamp-equals-method

Java Timestamp compareTo() 方法

语法

参数

返回值

示例 1

示例 2

示例 3

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Java Timestamp compareTo() 方法

语法

参数

返回值

示例 1

示例 2

示例 3

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