列举Java中的赋值运算符  

// 变量初始化
		int a = 30;
		int b = 20;
		// 定义结果变量
		boolean r1, r2, r3, r4, r5, r6;
		// 计算结果
		r1 = a == b;
		r2 = a != b;
		r3 = a > b;
		r4 = a < b;
		r5 = a >= b;
		r6 = a <= b;
		// 输出结果
		System.out.println("a = " + a + "   b = " + b);
		System.out.println("a==b = " + r1);
		System.out.println("a!=b = " + r2);
		System.out.println("a>b = " + r3);
		System.out.println("a<b = " + r4);
		System.out.println("a>=b = " + r5);
		System.out.println("a<=b = " + r6);