獲取兩個數並比較大小(java 學習)


import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class CompareNum {
	public static void main(String[] args) {
		//InputStreamReader isr = new InputStreamReader(System.in);接受從控制台輸入的字節
		//BufferedReader br = new BufferedReader(isr);
		BufferedReader br =new BufferedReader(new InputStreamReader(System.in));
		try {
			System.out.println("請輸入第一個數");
			//從緩存中讀取一行的內容
			String num1 = br.readLine();
			
			System.out.println("請輸入第二個數");
			String num2 = br.readLine();
			
			//float fnum1 = Float.parseFloat(num1);
			//float fnum2 = Float.parseFloat(num2);
			
			int fnum1 = Integer.parseInt(num1);
			int fnum2 = Integer.parseInt(num2);
			
			//int fnum2 = Integer.parseInt(num2,16 );
			
								
			
			if(fnum1>fnum2) {
				System.out.println(fnum1+"大於"+fnum2);
			}
			if(fnum1<fnum2) {
				System.out.println(fnum1+"小於"+fnum2);
			}
			if(fnum1==fnum2) {
				System.out.println(fnum1+"等於"+fnum2);
			}
			} catch (IOException e) {
				System.out.println("無法判斷");
				
		}
		
	}

}

 


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