Java之邏輯錯誤

public class Study4 {
	
	public static void main(String[] args) {
		int number1 = 3;
		int number2 = 3;
		number2 =+ number1 + number2;
		System.out.print("number2 is "+number2);
				
/*如1： sum += i; 
 * 意思：int i = 1;
 *       int sum = 0;
 *       sum = sum + i; 
 *  如2：sum = =i;     
 * 意思：……
 */
}}

新手學Java小筆記