View Compilation Error

0_0_28678096_16503\Main.java:19: 错误: 需要')'
	System.out.println(1+" "2);
	                        ^
0_0_28678096_16503\Main.java:19: 错误: 非法的表达式开始
	System.out.println(1+" "2);
	                         ^
0_0_28678096_16503\Main.java:22: 错误: 需要')'
	System.out.println(2+" "2.5);
	                        ^
0_0_28678096_16503\Main.java:22: 错误: 非法的表达式开始
	System.out.println(2+" "2.5);
	                           ^
4 个错误