Java学习---比较两个数大小

import javax.swing.JOptionPane;public class Compare{public static void main(String[] args){String s1,s2;s1=JOptionPane.showInputDialog("Please enter the first number:");s2=JOptionPane.showInputDialog("Please enter the second number:");int firstNumber,secondNumber;firstNumber=Integer.parseInt(s1);secondNumber=Integer.parseInt(s2);if(firstNumber>secondNumber){JOptionPane.showMessageDialog(null,firstNumber+" larger than "+secondNumber);}else if(secondNumber>firstNumber){JOptionPane.showMessageDialog(null,secondNumber+" larger than "+firstNumber);}else{JOptionPane.showMessageDialog(null,firstNumber+" equal to "+secondNumber);}}}