View Compilation Error

0_0_15392385_29761\Main.java:4: 错误: 需要class, interface或enum
	public static void main(String[] args) {
	              ^
0_0_15392385_29761\Main.java:6: 错误: 需要class, interface或enum
		int q,w;
		^
0_0_15392385_29761\Main.java:7: 错误: 需要class, interface或enum
		q=ne.nextInt();
		^
0_0_15392385_29761\Main.java:8: 错误: 需要class, interface或enum
		BigInteger k,l;
		^
0_0_15392385_29761\Main.java:9: 错误: 需要class, interface或enum
		for(w=1;w<=q;w++)
		^
0_0_15392385_29761\Main.java:9: 错误: 需要class, interface或enum
		for(w=1;w<=q;w++)
		        ^
0_0_15392385_29761\Main.java:9: 错误: 需要class, interface或enum
		for(w=1;w<=q;w++)
		             ^
0_0_15392385_29761\Main.java:12: 错误: 需要class, interface或enum
		l=ne.nextBigInteger();
		^
0_0_15392385_29761\Main.java:13: 错误: 需要class, interface或enum
		System.out.println("Case "+w+":");
		^
0_0_15392385_29761\Main.java:14: 错误: 需要class, interface或enum
		System.out.println(k+" + "+l+" = "+k.add(l));
		^
0_0_15392385_29761\Main.java:15: 错误: 需要class, interface或enum
		}
		^
11 个错误