datachange.java

Java程序设计培训教程2

public class dataChange{
	public static void main(String args[])
	{
		int dataVar1 = 100;
		int dataVar2 = 200;
		System.out.println("*****Information before exchange*****");
		System.out.println("dataVar1 = "+dataVar1);
		System.out.println("dataVar2 = "+dataVar2);
		int temp;
		if(dataVar1>0 && dataVar2>0)
		{
			temp = dataVar1;
			dataVar1 = dataVar2;
			dataVar2 = temp;
		}
		System.out.println("*****Information after exchange*****");
		System.out.println("dataVar1 = "+dataVar1);
		System.out.println("dataVar2 = "+dataVar2);
	}
}