java 集合运算
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package testjavapro; import java.util.BitSet; public class testjavaa { public static void main(String args[]) { BitSet bits1 = new BitSet(16); BitSet bits2 = new BitSet(16); // set some bits for(int i=0; i<16; i++) { if((i%2) == 0) bits1.set(i); if((i%5) != 0) bits2.set(i); } System.out.println("Initial pattern in bits1: "); System.out.println(bits1); System.out.println(" Initial pattern in bits2: "); System.out.println(bits2); // AND bits bits2.and(bits1); System.out.println(" bits2 AND bits1: "); System.out.println(bits2); // OR bits bits2.or(bits1); System.out.println(" bits2 OR bits1: "); System.out.println(bits2); // XOR bits bits2.xor(bits1); System.out.println(" bits2 XOR bits1: "); System.out.println(bits2); } }
输出
Initial pattern in bits1: {0, 2, 4, 6, 8, 10, 12, 14} Initial pattern in bits2: {1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 13, 14} bits2 AND bits1: {2, 4, 6, 8, 12, 14} bits2 OR bits1: {0, 2, 4, 6, 8, 10, 12, 14} bits2 XOR bits1: {}
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