Tue, 11 Mar 2008 01:44:00 GMT

public class CommandLineParam {
    public static void main(String args[]){
        int a1,a2,a3;
        if(args.length<2)
        {
            System.out.println("Not Enough command line parameters is provideed");
        System.exit(0);

        }
        a1=Integer.parseInt(args[0]);
        a2=Integer.parseInt(args[1]);
        a3=a1+a2;
        System.out.println("Add"+a1+"with"+a2+"result in"+a3);
    }
}
/*D:\Program Files\Xinox Software\JCreatorV3\MyProjects\ccx9>java CommandLineParam
31  -9
Add31with-9result in22*/

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Mon, 10 Mar 2008 04:25:00 GMT

import javax.swing.*;

public class StringTest2 {
    public static void main(String args[]){
        String s1,s2,s3,s4,output;

        s1=new String ("good morning");
        s2=new String ("John");
        s3=new String("How are you");
        s4=new String("   how are you");

        output="s1="+s1+"\ns2="+s2+"\ns3="+s3+"\ns4"+s4+"\n\n";

        if(s1.equals("hello"))
    output+="s1 equals\"hello\"\n";
        else
        output+="s1 dose not equal\"hello\"\n";

        if (s3.equalsIgnoreCase(s4))
        output+="s3 equals s4\n";
        else
        output+="s3 dose not equal s4\n";

        if(s3.regionMatches(0,s4,0,5))
        output+="First 5 characters of s3 and s4 match\n";
        else
        output+="First 5 characters of s3 and s4 do not match\n";

            if(s3.regionMatches(true,0,s4,0,5))
        output+="First 5 characters of s3 and s4 match\n";
        else
        output+="First 5 characters of s3 and s4 do not match\n";

        output+="s1与s4�q�接��h��是："+s1.concat(s4)+"\n";

        output+="the first\"day\"of s4 is :"+s4.indexOf("you")+"\n";
        output+="the last\"day\"of s4 is :"+s4.lastIndexOf("we");

        JOptionPane.showMessageDialog(null,output,"Demonstring String Class CONstructors",JOptionPane.INFORMATION_MESSAGE);
        System.exit(0);
    }

}
//p133

沉默奔跑�?/a> 2008-03-10 12:25 发表评论

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